Number System One half of a two digit number exceeds its one third by 6. What is the sum of the digits of the number? 9 3 7 5 9 3 7 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x/2 – x/3 = 6=> x =63 + 6 = 9
Number System 17580 x 1.8 - 13720 x 2.1 = ? x 2.4 1160 1120 1140 1180 1160 1120 1140 1180 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2.4 x ? = 31644 - 28812 = 2832∴ ? = 2832/2.4= 1180
Number System If a + b = 16 and ab = 68, what is the value of a² + b² ? 124 120 116 112 124 120 116 112 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 Find the greatest four digit number which leaves respective remainders of 2 and 5 when divided by 15 and 24. 9974 9125 9565 None of these 9974 9125 9565 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Since the difference between the divisors and the respective remainders is not constant, back substitution is the convenient method. None of the given numbers is satisfying the condition.
Number System 50% of 8/15 of 9/4 of 5/3 of 333 = ? 555 666 444 333 555 666 444 333 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 50% of [8x9x5/15x4x3 x 333]= 50% of 666= 333
Number System 2/11 of 3/7 of 8/13 of 12012 = ? 576 321 449 241 576 321 449 241 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 2 x 3 x 8 x 12012/11 x 7 x 13 = 576
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