quantitative aptitude

Question Find the simple interest on Rs. 78000 at 15(2/5) % per annum for 9 months. Type multiple_choice Option Rs. 7804 incorrect Option Rs. 8979 incorrect Option Rs. 8046 incorrect Option Rs. 9009 correct Solution P = Rs. 78000, R = 77/5 % p.a and T = 9/12 years = ¾ years Therefore, S.I = […]

Question The cube root of .000343 is Type multiple_choice Option 0.7 incorrect Option 0.07 correct Option 0.007 incorrect Option None of these incorrect Solution (.000343)1/3 = (343/106)1/3 = (7*7*7/ 102*102*102)1/3 = 7/102 = 7/100 = 0.07

Question On simplification, 3500 – (1000 ÷ 20.50) is equal to  : Type multiple_choice Option 3451.21 correct Option 3029.00 incorrect Option 2993.03 incorrect Option 2984.36 incorrect Solution Given exp. = 3500 – ((1000 ÷ 2050) * 100) = 3451.21

Question When 0.535353 … is converted into a fraction, the result is Type multiple_choice Option 5/17 incorrect Option 20/9 incorrect Option 53/99 correct Option 53/100 incorrect Solution 0.535353….. = 0.53 = 53/99

Question Find the least number which should be added to 2430 so that the sum is exactly divisible by 5, 4 and 2 Type multiple_choice Option 3 incorrect Option 10 correct Option 13 incorrect Option 33 incorrect Solution L.C.M of 5, 4, and 2 = 20. On dividing 2430 by 20, the remainder is 10.

Question 8900 ÷ 6 ÷ 4 = ? Type multiple_choice Option 349 incorrect Option 541.75 incorrect Option 224.37 incorrect Option 370.833 correct Solution Given Exp. 8900 * 1/6 * 1/4 = 370.833

Question Evaluate : 28% of 400 + 45 % of 250 Type multiple_choice Option 220.3 incorrect Option 224.5 correct Option 190.3 incorrect Option 150 incorrect Solution 28% of 400 + 45 % of 250 = (28/100 *400 + 45/100 * 250) = (112 + 112.5) = 224.5

Question (1000)6/1015 = ? Type multiple_choice Option 10 incorrect Option 100 incorrect Option 1000 correct Option 10000 incorrect Solution (1000)6/1015 = (1000)6 / 1015 = (103)6/1015 = 10(3*6)/1015 = 1018/1015 = (10)(18 – 15) = 103 = 1000

Question The ratio between the present ages of A and B is 3:5 respectively. If the difference between B’s present age and A’s age after 4 years is 2 , what is the total of A’s and B’s present ages? Type multiple_choice Option 24 years correct Option 32 year incorrect Option 48 years incorrect Option

Question Two-third of a positive number and 16/216 of its reciprocal are equal. Find the positive number. Type multiple_choice Option 9/25 incorrect Option 14/4 incorrect Option 4 /12 correct Option 144/25 incorrect Solution Let the positive number be x. Then, 2/3 x = 16/216 * 1/x x2 = 16/216 * 3/2 = 16/144 x =