Quantitative aptitude

Question What is the difference in the place value of 5 in the numeral 754853? Type multiple_choice Option 49500 incorrect Option 49950 correct Option 45000 incorrect Option 49940 incorrect Solution The digit 5 has two place values in the numeral, 5 * 105 = 50,000 and 5 * 101 = 50.   ∴Required difference = […]

Question What is the average of first five multiples of 12? Type multiple_choice Option 36 correct Option 38 incorrect Option 40 incorrect Option 42 incorrect Solution Average = 12∗(1+2+3+4+5) ∗ Apti Average 1/5   = 12 ∗ 15∗ 1/5   = 12 ∗ 3= 36

Question If 15 toys cost Rs. 545, what do 37 toys cost ? Type multiple_choice Option Rs. 1344 correct Option Rs. 1200 incorrect Option Rs. 1668 incorrect Option Rs. 1542 incorrect Solution Let the required cost be Rs. x. More toys, More cost (Direct proportion) Therefore 15 : 37 :: 545 : x (15 *

Question 275, 132, 462, 396, 327, 891, 121 Type multiple_choice Option 327 correct Option 275 incorrect Option 121 incorrect Option 396 incorrect Solution In each number except 327, the middle digit is the sum of the other two.

Question How many words can be formed  by using all letters of word ALIVE. Type multiple_choice Option 86 incorrect Option 95 incorrect Option 105 incorrect Option 120 correct Solution The word ALIVE contains 5 different letters Therefore, Required number of words = 5p5 = 5! = (5*4*3*2*1) = 120

Question Find the compound interest on Rs. 25000 in 2 years at 4% per annum. The interest being compounded half yearly. Type multiple_choice Option Rs 3570.250 incorrect Option Rs 2896.598 incorrect Option Rs 2060.804 correct Option Rs 1050.200 incorrect Solution Given: Principal = Rs. 25000, Rate = 4 % per half year, Time = 2

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