Number System Let R = qs—4. When s=8, R=16. When s=10, R is equal to 21 20 22 23 21 20 22 23 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 21
Number System Complete the series : 81, 69, 58, 48, 39 ........ 28 29 30 31 28 29 30 31 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 31
Number System If a number is multiplied by. three-fourth of itself, the value thus obtained is 10800. What is that number ? 60 120 180 260 60 120 180 260 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 4/6 of 6/5 of 5/7 of a number is 96. Find the number. 162 168 164 170 162 168 164 170 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 three consecutive multiples of 3 is 72. What is the largest number? 21 24 27 36 21 24 27 36 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be 3x, 3x + 3 and 3x + 6.Then,3x + (3x + 3) + (3x + 6) = 729x = 63x = 7Largest number = 3x + 6 = 27.
Number System 7.8% of 12.5 + 2.5% of 161 = ? 12 9 2 5 12 9 2 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7.8 x 12.5/100 + 2.5 x 161/100= 0.975 + 4.025= 5
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