Number System Three times the first of three consecutive odd integers is 3 more than twice the third. The third integer is: 13 11 15 9 13 11 15 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the three integers be x, x + 2 and x+ 4.Then,3x = 2(x + 4) + 3x = 11Third integer = x + 4 = 15.
Number System How many times the keys of a typewriter have to be pressed in order to write first 400 counting numbers? 1192 1082 1092 1200 1192 1082 1092 1200 ANSWER DOWNLOAD EXAMIANS APP
Number System If a number is multiplied by. three-fourth of itself, the value thus obtained is 10800. What is that number ? 60 260 180 120 60 260 180 120 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 3x/4 = 10800= x² = 10800 x 4/3 = 14400∴ x = √14400 = 120
Number System If 5/7 of a number is 145, what is 180% of that number ? 345.4 355.4 375.4 365.4 345.4 355.4 375.4 365.4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 5/7 = 145∴ x = 145 x 7/5 = 203Now, 203 x 180/100 = 365.4
Number System One half of a two digit number exceeds its one third by 6. What is the sum of the digits of the number? 3 7 9 5 3 7 9 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x/2 – x/3 = 6=> x =63 + 6 = 9
Number System On dividing number by 5, we get 3 as remainder. What will be the remainder when the square of this number is divided by 5? 4 2 1 0 4 2 1 0 ANSWER DOWNLOAD EXAMIANS APP
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