Number System 7.8% of 12.5 + 2.5% of 161 = ? 5 12 2 9 5 12 2 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7.8 x 12.5/100 + 2.5 x 161/100= 0.975 + 4.025= 5
Number System (164 x 175) x ? = 258300 5 9 11 2 5 9 11 2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 258300 / 164 x 175 = 9
Number System Supply the missing figure : 2, 6, 12, 20, 30 ... 56 41 40 39 42 41 40 39 42 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 42
Number System Find the least value of 3x + 4y if x2y3 = 6. 10 3 7 6 10 3 7 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 10
Number System Two numbers are in the ratio 3:5. If 9 be subtracted from each, they are in the ratio of 9:17. The first number is: 18 27 36 30 18 27 36 30 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (3x-9):(5x-9) = 9:17 x = 12 => 3x = 36
Number System If (74)² is added to the square of a number the answer so obtained is 7780. What is the number ? 49 48 47 50 49 48 47 50 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.or, x² + (74)² = 7780or, x² = 7780 - 5476 = 2304∴ x = 48
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