Number System How many numbers up to 300 and 700 are divisible by 2, 3 and 7 both together? 10 8 11 9 10 8 11 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (700 – 300)/42 = 9 22/42 => 9 Numbers
Number System 486+32×25—59=? 582 596 567 528 582 596 567 528 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 528
Number System What number should come in the place of (?) in the following number series ? 1, 4, 9, 25, 49, ?, 169, 289, 361 225 11 321 121 225 11 321 121 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The series is (Prime No.)²So it is (11)² = 121
Number System What is the sum of 1 + 2 + 3+ ... + 27 ? 382 396 343 378 382 396 343 378 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Sum = 27 x (27 + 1)/2= 27 x 28/2= 27 x 14= 378
Number System 64% of 2650+40% 0f 320=? 1824 1247 1578 2096 1824 1247 1578 2096 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1824
Number System The sum of three consecutive multiples of 3 is 72. What is the largest number? 24 27 36 21 24 27 36 21 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be 3x, 3x + 3 and 3x + 6.Then,3x + (3x + 3) + (3x + 6) = 729x = 63x = 7Largest number = 3x + 6 = 27.
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