Number System 4550 ÷ 25% of ? = 130 135 125 130 140 135 125 130 140 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4550 ÷ ? x 25/100 = 130= 4550 ÷ ?/4 = 130= 4550 x 4/? = 130= ? x 130 = 4550 x 4= ? = 4550 x 4/130 = 140
Number System The simplest form of 1.5 : 2.5 is : 5 : 7 17 : 19 3 : 5 13 : 11 5 : 7 17 : 19 3 : 5 13 : 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3 : 5
Number System Find the least number when successively divided by 2, 3 and 7 leaves remainders 1, 2 and 3 respectively? 65 75 67 61 65 75 67 61 ANSWER DOWNLOAD EXAMIANS APP
Number System If (17)3 is subtracted from the square of a number, the answer so obtained is 2143. What is the number ? 82 81 84 83 82 81 84 83 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (17*17*17) = 2143or x² = 2143 + 4913 = 7056∴ x = 84
Number System A, B, C, D and E are consecutive even numbers respectively. The average of 5 numbers is 82. What is the product of C and E ? 6383 6363 6353 6373 6383 6363 6353 6373 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + x + 1 + x + 2 + x + 3 + x + 4 = 5 x 82= 5x + 10 = 410 = 5x = 400= x = 400/5 = 80 ∴ A = 80C = 82and E = 84= C x E = 82 x 84 = 6383
Number System 8988 / 8 / 4 = ? 280.875 561.75 2247 4494 280.875 561.75 2247 4494 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8988 * 1/8 * 1/4 = 2247/8 = 280.875
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