Number System If a + b = 16 and ab = 68, what is the value of a² + b² ? 112 120 124 116 112 120 124 116 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP a + b = 16 Therefore, (a+b)² = (16)² = 256 a² + b² + 2ab = 256Therefore, a² + b² = 256 - 2 x 68Therefore, a² + b² = 256 - 136 = 120
Number System 217 * 217 + 183 * 183 = ? 80698 80578 79698 81268 80698 80578 79698 81268 ANSWER DOWNLOAD EXAMIANS APP
Number System If A = 1, B = 3, C = 5 and so on, what do the numbers 3, 9, 7 stand for BAT BED CAR CAT BAT BED CAR CAT ANSWER EXPLANATION DOWNLOAD EXAMIANS APP BED
Number System In a fraction, twice the numerator is two more than the denominator. If 3 is added to the numerator and the denominator each, then the resultant fraction will be 2/3 .What was the original fraction 11/12 19/12 17/12 7/12 11/12 19/12 17/12 7/12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7/12
Number System A certain number successively divided by 2, 5 and 7 leaves remainders 1, 2 and 3 respectively. When the same number is divided by 70, what is the remainder? 33 34 36 35 33 34 36 35 ANSWER DOWNLOAD EXAMIANS APP
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