Number System 4/6 of 6/5 of 5/7 of a number is 96. Find the number. 168 162 164 170 168 162 164 170 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 4/6 x 6/5 x 5/7 = 96∴ x = 96 x 6 x 5 x 7/4 x 6 x 5 = 168
Number System The sum of five consecutive numbers is 190. What is the sum of the largest and the smallest number ? 73 75 76 74 73 75 76 74 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + x + 1 + x + 2 + x + 3 + x + 4= 190= 5x + 10 = 190= 5x = 190 - 10 = 180= x = 180/5 = 36The largest number = 36 + 4 = 40∴ Required sum = 36 + 40 = 76
Number System The sum and the product of two numbers are 25 and 144 respectively, the difference of the number is? 5 7 3 11 5 7 3 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 25xy = 144(x- y)2 = (x + y)2 – 4xy(x- y)2 = 625 – 576 => (x – y) = 7
Number System 4500 * ? = 3375 1/4 3/5 3/4 2/5 1/4 3/5 3/4 2/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4500 * x = 3375= x = 3375/4500 = 3/4
Number System 3√103820 x 3√274620 = ? 3035 3055 3065 3045 3035 3055 3065 3045 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3√103820 = 47 and 3√274620 = 65 ∴ ? = 47 x 65 = 3055
Number System 1260 x 1.45 - 888 x 1.75 = ? 273 256 367 295 273 256 367 295 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 1260 x 1.45 - 888 x 1.75= 1827 - 1554 = 273
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