Number System In how many different ways can the letters of the word FORMULATE be arranged ? 362880 382880 372880 392880 362880 382880 372880 392880 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. of letters = 9! = 9*8*7*6*5*4*3*2*1 = 362880
Number System How many times the keys of a typewriter have to be pressed in order to write first 400 counting numbers? 1082 1192 1200 1092 1082 1192 1200 1092 ANSWER DOWNLOAD EXAMIANS APP
Number System 4550 ÷ 25% of ? = 130 130 140 125 135 130 140 125 135 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4550 ÷ ? x 25/100 = 130= 4550 ÷ ?/4 = 130= 4550 x 4/? = 130= ? x 130 = 4550 x 4= ? = 4550 x 4/130 = 140
Number System 5525 ÷ 17 = √? 93025 99225 112225 105625 93025 99225 112225 105625 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √? = 5525/17 = 325∴ ? = (325)² = 105625
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? 7 9 3 5 7 9 3 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x/2 – x/3 = 6=> x =63 + 6 = 9
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