Description : Find: (i) 25% of Rs 76 (ii) 20% of Rs 132 (iii) 7.5% of 600 m (iv) 313% of 90 km (v) 8.5% of 5 kg (vi) 20% of 12 litres -Maths
Last Answer : answer:
Description : Find: (i) 32% of 425 (ii) 1623% of 16 (iii) 6.5% of 400 (iv) 136% of 70 (v) 2.8% of 35 (vi) 0.6% of 45 -Maths
Description : The population of a town increases at 5% per annum. Its present population is 16000. What will be its population after 2 years? -Maths
Description : Express each of the following as a ratio: (i) 43% (ii) 36% (iii) 7.5% (iv) 125% -Maths
Description : Class 12 | Maths | Complex Numbers | Simplify the following complex numbers and find their modulus.
Last Answer : Class 12 | Maths | Complex Numbers | Simplify the following complex numbers and find their modulus.
Description : Class 12 | Maths | Complex Numbers | Simplify -2i ( 3 + i )( 2 + 4i )( 1 + i ) and obtain the modulus of that complex number.
Last Answer : Solution :
Description : Class 12 | Maths | Complex Numbers | Express the complex numbers modulus-amplitude form - √3 + i
Description : Maths | Complex Numbers | If √3 + i = r (cosθ + i sinθ), then find the value of θ in radian measure.
Description : The value of a machine depriciates at the rate of 10% per annum. If its present value is Rs 10000, what will be its value after 2 years? -Maths
Description : Convert each of the following decimals into a percentage: (i) 0.6 (ii) 0.42 (iii) 0.07 (iv) 0.005 -Maths
Description : Convert each of the following into a fraction: (i) 32% (ii) 614% (iii) 2623% (iv) 120% (v) 6.25% (vi) 0.8% (vii) 0.06% (viii) 22.75% -Maths
Description : Fill in the blanks: (a) 1 lakh = ………….. ten thousand. (b) 1 million = …………… hundred thousand. (c) 1 crore = ………………. ten lakh. (d) 1 crore = ……………. million. (e) 1 million = ……………. lakh. -Maths
Last Answer : a) 10 (b) 10 (c) 10 (d) 10 (e) 10
Description : A number is increased by 10% and the increased num\ber is decreased by 10%. Show that the net decrease is 1 -Maths
Description : (i) What per cent of 1 kg is 125 g? (ii) What per cent of 80 m is 24 m? -Maths
Description : An ore contains 12% copper. How many kilograms of the ore are required to get 69 kg of copper? -Maths
Last Answer : 579 kg is the answer
Description : 70% of the students in a school are boys and the number of girls is 504. Find the number of boys in the school. -Maths
Description : 96% of the cost of a TV is Rs 10464. What is its total cost? -Maths
Description : The excise duty on a certain item has been reduced to Rs 760 from Rs 950. Find the reduction per cent in the excise duy on that item. -Maths
Description : The monthly salary of a typist is Rs 15625. If he gets an increase of 12%, find his new salary. -Maths
Description : Rupesh secures 495 marks out of 750 in his annual examination. Find the percentage of marks obtained by him. -Maths
Description : What percentage is (i) Rs 15 of Rs 120? (ii) 36 minutes of 2 hours? (iii) 8 hours of 2 days (iv) 160 metres of 4 km? (v) 175 mL of 1 litre? (vi) 25 paise of Rs 4? -Maths
Description : What per cent of 84 is 14? -Maths
Description : What amount is 10% more than Rs 90? -Maths
Description : Find the number whose 614% is 2. -Maths
Description : Find the number whose 13% is 65. -Maths
Description : Convert each of the following into decimal form: (i) 45% (ii) 127% (iii) 3.6% (iv) 0.23% -Maths
Description : Convert each of the following ratios into a percentage: (i) 37 : 100 (ii) 16 : 25 (iii) 3 : 5 (iv) 5 : 4 -Maths
Description : Convert each of the following fraction into a percentage: (i) 47 100 (ii) 9 20 (iii) 3 8 (iv) 8 125 (v) 19 500 (vi) 4 15 (vii) 2 3 (viii) 1 3 5 -Maths
Last Answer : We have the following: (i) 47100=47100×100% = 47% (ii) 920=920×100% =9×5%= 45% (iii) 38=38×100% =3×252%=752%=3712% (iv) 8125=8125×100%=8×45%=325%=6.4% (v) ... ;203%=803%=2623% (vii) 23=23×100%=2003%=6623% (viii) 135=85=85×100%=(8×20)%=160%
Description : Write each of the following as decimals: (a) 5 / 10 (b) 3 + 7 / 10 (c) 200 + 60 + 5 + 1 / 10 (d) 70 + 8 / 10 (e) 88 / 10 -Maths
Last Answer : (a) 5 / 10 = 0.5 (b) 3 + 7 / 10 = 3 + 0.7 = 3.7 (c) 200 + 60 + 5 + 1 / 10 = 265 + 0.1 = 265.1 (d) 70 + 8 / 10 = 70 + 0.8 = 70.8 (e) 88 / 10 = 80 / 10 + 8 / 10 = 8 + 0.8 = 8.8 (f) (g) 3 / 2 = (2 + 1) / ... + 0.5 = 1.5 (h) 2 / 5 = 0.4 (i) 12 / 5 = (10 + 2) / 5 = 10 / 5 + 2 / 5 = 2 + 0.4 = 2.4 (j) (k)
Description : Write each of the following as decimals: (a) Seven-tenths (b) Two tens and nine-tenths (c) Fourteen point six (d) One hundred and two ones (e) Six hundred point eight -Maths
Last Answer : (a) The decimal form of Seven-tenths is 7 / 10 = 0.7 (b) The decimal form of two tens and nine tenths is 20 + 9 / 10 = 20.9 (c) The decimal form of fourteen point six is 14.6 (d) The decimal form of one hundred and two ones is 100 + 2 = 102.0 (e) The decimal form of six hundred point eight is 600.8
Description : If the half-life of a radioisotope is 2 days, after how many days is the quantity reduced to 12.5% of its original amount? w) 4 days x) 6 days y) 8 days z) 10 days
Last Answer : ANSWER: X -- 6 DAYS
Description : A child consumed an ice-cream of inverted right-circular conical shape from the top and left only 12.5% of the cone for her mother. -Maths 9th
Description : What is the rate of interest in PPF wef 01 Apr 12 ? a) 8.8% per annum compounded yearly b) 8.5% per annum compounded yearly c) 8.6 % per annum compounded yearly d) None of these
Last Answer : a) 8.8% per annum compounded yearly
Description : The rate of interest in RD account opened before 01 Dec 11 and on or after 01 Dec 2011 and up to 31 Mar 12 is a) 6.5%, 7% b) 7.5%, 8% c) 8%, 8.5% d) 8%, 8.2%
Last Answer : b) 7.5%, 8%
Description : A bond with the number 12.6S2005, indicates that: a. the interest rate is 12.6%; due in May. b. the interest rate is 12%; due on June 05. c. the interest rate is 12%; due in June 2005. d. the interest rate is 5%; due on December 6. e. the interest rate is 12.6%; due on December 31, 2005.
Last Answer : e. the interest rate is 12.6%; due on December 31, 2005.
Description : If your interest rate is 12.1%, and when you issue new bonds, the bond interest rate is: a. 10.7%. b. 12.1%. c. 13.5%. d. 6.1%. e. 12%.
Last Answer : c. 13.5%.
Description : If `(0.15xx x)` is equal to `12.5%` of 3, then find x.
Last Answer : If `(0.15xx x)` is equal to `12.5%` of 3, then find x.
Description : A galvanometer has resistance of 120 Ω. In order to pass 5% of the main current in it, the value of shunt resistance Rs must be equal to a) 6.3 Ω b) 6 Ω c) 2 Ω d) 2.3 Ω
Last Answer : a) 6.3 Ω
Description : A basket contains apples, guravs and organs. The number of guavas is `60%` more than that of apples and the number of oranges is `12.5%` less than tha
Last Answer : A basket contains apples, guravs and organs. The number of guavas is `60%` more than that of apples ... fruits is 80, then find the number of oranges.
Description : The ratio of industrial contribution to GDP growth during 2011-12 is A. 23.43% B. 20% C. 20.5% D. 18.9%
Last Answer : ANSWER: A
Description : Annual growht rate of agriculture for the year 2011- 12 was? A. 1.81% B. 2.5% C. 3.1% D. 3.7%
Last Answer : ANSWER: C
Description : The maximum rate of underwriting commission on debentures is– (A) 10% (B) 2•5% (C) 12•5% (D) 5%
Last Answer : Answer: 2•5%
Description : If the average compressive strength is 4000 kg/cm2 and standard deviation is 500, the co-efficient of variation is (A) 10 % (B) 12.5 % (C) 15 % (D) 18.5%
Last Answer : Answer: Option B
Description : A dealer sold a radio at a loss of 2.5%. Had he sold it for Rs. 120 more, he would have gained 7.5%. In order to gain 12.5% after a 25% discount, the marked price should be: a) 1750 b) 1800 c) 1857.75 d) 1925 e) None of these
Last Answer : 120 = 10% of the CP (2.5% loss to 7.5% profit) Or CP = Rs. 1200 To gain 12.5%, SP = 1200 × 1.125 = Rs. 1350 Rs. 1350 = 25% discounted of Marked Price Or marked Price = 1350/0.75 = Rs. 1800 Answer: b)
Description : Ashwin purchased a second hand machine for Rs.1 lakh. Over the first year after its purchase. He incurred an expense of Rs.20000 in maintaining it. At the end of the first year he sold it for Rs.80000. Find his ... account of depreciation. a)12.5% profit b)12.5% loss c)11 1/9% profit d)11 1/9% loss
Last Answer : d)11 1/9% loss
Description : A shopkeeper sold a toothpaste at a profit of 12.5%. His cost price was Rs.5 less than his selling price. find his cost price (in Rs.) a)30 b)36 c)40 d)50
Last Answer : c)40
Description : A dealer sold a Radio at a loss of 2.5%. Had he sold it for Rs. 100 more, he would have gained 7.5%. To gain 12.5% he should sell it for : A. Rs 2200 B. Rs 1000 C. Rs 1100 D. Rs 1125
Last Answer : Answer – D. Rs.1125 Explanation – Let C.P be Rs.x then,(107.5 % of x) – (97.5 % of x) = 100 => 10% of x = 100 => x =1000 ∴ desired S.P = 112.5 % of Rs. 100 = Rs.(225/2 x 1/100 x 1000) =Rs. 1125
Description : A article is listed at Rs. 2000 and a discount of 20% is offered on the list price .What additional discount must be offered to the customer bring the net price to Rs. 1400? A. 12.5% B. 10% C. 12% D. 15%
Last Answer : Answer – A. 12.5% Explanation – S.P after 1st discount, 100%………2000 80%………? ?=2000×80/100=1600 Net S.P = Rs. 1400. Discount on Rs. 1600 = Rs. 200. ∴Required discount = (200/1600 x 100)% =12.5%
Description : A manufacture undertakes to supply 2000 pieces of a particular component at Rs.25 per piece. According to his estimates, even if 5% fail to pass the quality tests, then he will make a profit of 25%. However as it turned out, ... A. Rs 12,000 B. Rs 13,000 C. Rs 14,000 D. Rs 15,000 E. None f these
Last Answer : Answer - B. Rs 13,000 Explanation: 5% of 2000=100 so 2000-100=1900 so,if he sells 1900 he will get 25% profit cost per piece rs 25 so 25x 1900 don't solve here if 125% . ... /125=38000=CP if 50% rejected,only 1000 pieces sold so 1000 25=25000=SP loss=cp-sp= 38000-25000=13000