Number System If the average of two numbers is 88.5 and one number is 5.5 less than the average. Find out the next number. 97 86 94 91 97 86 94 91 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 94
Number System A number when multiplied by five times of itself give the value equal to 1445. What is the number ? 15 16 17 18 15 16 17 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x x 5x = 1445= 5x² = 1445= x² = 289∴ x = 17
Number System If a number is multiplied by. three-fourth of itself, the value thus obtained is 10800. What is that number ? 120 60 260 180 120 60 260 180 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 A number consists of 3 digit whose sum is 10. The middle digit is equal to the sum of the other two and the number will be increased by 99 if its digits are reversed. The number is: 370 352 253 145 370 352 253 145 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the middle digit be x. Then, 2x = 10 or x = 5.So, the number is either 253 or 352. Since the number increases on reversing the digits, so the hundred's digit is smaller than the unit's digit. Hence, required number = 253.
Number System (12.04 x 7.5 + 0.8 x 45) ÷ 3 = ? 45 42.1 54.7 42.6 45 42.1 54.7 42.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (90.3 + 36) ÷ 3 = 126.3/3 = 42.1
Number System Three seventh of a number is 12 more than 40% of that number. What will be the 60% of that number? 248 210 126 148 248 210 126 148 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3/7 x – 40/100 x = 12x = 35 * 1235 * 12 * 60/100 = 252/2 = 126
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