Number System √343 = ? 19 21 18 20 19 21 18 20 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √343 = 18
Number System If (72)² is subtracted from the square of a number, the answer thus obtained is 4617. What is the number ? 103 95 92 99 103 95 92 99 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (72)² = 467Therefore, x² = 4617 + 5184Therefore, x² = 9801 Therefore, x = 99
Number System On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is: 47619 47649 48619 47719 47619 47649 48619 47719 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP By hit and trail, we find that47619 * 7 = 333333.7) 333333 (47619 333333---------------- 0
Number System A man engaged a servant on the condition that he would pay him Rs.900 and a uniform after one year service. He served only for 9 months and received uniform and Rs.650, find the price of the uniform? Rs.85 Rs.80 Rs.90 Rs.100 Rs.85 Rs.80 Rs.90 Rs.100 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9/12 = 3/4 * 900 = 675 650 ------------- 251/4 -------- 251 --------- ? => Rs.100
Number System √9216 + √15376 = ? 227 220 231 224 227 220 231 224 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √9216 + √15376= 96 + 124= 220
Number System Which one of the following represents the sum of the first n even numbers? N(N – 1) N(N + 1) N2+ 1 N2 N(N – 1) N(N + 1) N2+ 1 N2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP N (N + 1)
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