Number System The cost of 87 pens and 29 pencils is `783. What is the cost of 90 pens and 30 pencils ? Rs. 830 Rs. 800 Rs. 820 Rs. 810 Rs. 830 Rs. 800 Rs. 820 Rs. 810 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the price of a pen be 'x' and that of pencil be 'y' Then 87x + 29y = 783Multiplying eqn (i) by 30/29 we get (87x) x 30/29 + (29y) 30/29 = 783 x 30/29∴ 90x + 30y = 810
Number System (800 / 64) * (1296 / 36) = ? 460 420 None of these 500 460 420 None of these 500 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given Exp.= 800/64 * 1296/36 = 12.5 * 36 = 450
Number System ?125÷5x ?=6265 1253 153 1452 124 1253 153 1452 124 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1253
Number System In how many different ways can the letters of the word 'FRUGAL'be arranged ? 660 720 515 556 660 720 515 556 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In FRUGAL there ae six difference letters Therefore, 6 ! = 6 x 5 x 4 x 3 x 2 x 1 = 720
Number System How many numbers up to 100 are divisible by 7? 14 100 107 93 14 100 107 93 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 100/7 = 14 2/7 => 14 Numbers
Number System How many times the keys of a typewriter have to be pressed in order to write first 400 counting numbers? 1082 1192 1092 1200 1082 1192 1092 1200 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS