Number System What least number shall be added to 4700 to make it a perfect square ? 81 61 71 91 81 61 71 91 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (69)² = 4761 and (68)² = 4624Clerly 4624 < 4700 < 4761So 61 should be added to make 4700 a perfect square.
Number System On dividing a number by 68, we get 269 as quotient and 0 as remainder. On dividing the same number by 67, what will be the remainder? 0 2 3 1 0 2 3 1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number = 269 * 68 + 0 = 1829267) 18292 (273 18291 -------- 1Required number = 1.
Number System A shopkeeper purchased 200 bulbs for Rs. 10 each. However, 5 bulbs were fused and had to be thrown away. The remaining were sold at Rs. 12 each. What will be percentage profit? 17 21 33 14 17 21 33 14 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 12
Number System The difference between two integers is 5. Their product is 500. Find the numbers. 21, 26 15, 20 30, 25 20, 25 21, 26 15, 20 30, 25 20, 25 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the integers be x and (x + 5). Then, x(x + 5) = 500 x2 + 5x - 500 = 0 (x + 25)(x - 20) = 0 x = 20So, the numbers are 20 and 25.
Number System Pick the wrong number from the given number series. 3,4,10,33,135,685,4116 685 33 10 135 685 33 10 135 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The correct number is 136.3 x 1 + 1 = 44 x 2 + 2 = 1010 x 3 + 3 = 3333 x 4 + 4 = 136136 x 5 + 5 = 685685 x 6 + 6 = 4116
Number System Let R = qs—4. When s=8, R=16. When s=10, R is equal to 22 20 21 23 22 20 21 23 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 21
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