Number System 1089/? = ?/1296 1278 1188 1082 1348 1278 1188 1082 1348 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 1089 x 1296(?)²= (11 x 11 x 9) x (12 x 12 x 9)(?)= 11 x 12 x 9= 1188
Number System If a number is subtracted from its square we get 272. Find the number? 17 22 24 14 17 22 24 14 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x2 – x = 272 => x =17
Number System If the sum of four consecutive numbers is 370, which the following is the third lowest number among them 90 89 92 91 90 89 92 91 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the four consecutive numbers be x, (x + 1), (x + 2), (x + 3) thenx + (x + 1) + (x + 2) + (x + 3) = 370= 4x + 6 = 370∴ x = 364/4 = 91∴ third lowest number among them = x + 1= 91 + 1 = 92
Number System If three eighth of a number is 141. What will be the approximately value of 32.08% of this number? 160 120 60 90 160 120 60 90 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 3/8 = 141 => x= 376376 * 32.08/100 = 120
Number System If one third of 3/4 of a number is 21. Then find the number? 630 84 840 63 630 84 840 63 ANSWER DOWNLOAD EXAMIANS APP
Number System The difference between 71% of a number and 46% and of the same number is 212. What is 75% of that number 636 673 724 845 636 673 724 845 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ 71% of x - 46% of x = 212∴ (71 - 46)% of x = 212∴ 25/100 x x = 212∴ x = 212 x 4 = 848∴ 75% of 848 = 848 x 75/100 = 636
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