Number System The difference between 45% of a number and 18% of the same number is 145.8. What is 30% of that number ? 188 162 141 245 188 162 141 245 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.45% of x - 18% of x = 145.8∴ x/100 (45 - 18) = 145.8∴ x = 145.8 x 100/27 = 540∴ 30% of 540 = 540 x 30/100 = 162
Number System (4 86%of 6500) ÷ 36 =? 777.5 677.5 977.5 877.5 777.5 677.5 977.5 877.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 877.5
Number System 7432 ÷ 32 x ? = 2787 21 78 12 41 21 78 12 41 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7432/32 x ? = 2787= ? = 2787 x 32/7432 = 12
Number System If the sum of five consecutive even numbers A, B, C, D and E is 130, what is the product of A and E ? 660 840 720 780 660 840 720 780 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the consecutive even numbers be A = 2x, B = 2x + 2, C = 2x + 4, D = 2x + 6 and E = 2x + 8= A + B + C + D + E = 130= 10x + 20 = 130∴ x = 130 - 20/10 = 11Therefore, product of A and E= 22 x 30 = 660
Number System 384×12×2=? 7487 6123 8465 9216 7487 6123 8465 9216 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9216
Number System 2536+4851—?=3450+313 3624 4567 5243 6784 3624 4567 5243 6784 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3624
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