Number System If the fractions8/5,7/2,9/5,5/4,4/5 are arranged in descending order of their values, which one will be fourth? 5/4 11/13 7/9 1/3 5/4 11/13 7/9 1/3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 5/4
Number System In how many different ways can the letters of the word FORMULATE be arranged ? 382880 372880 392880 362880 382880 372880 392880 362880 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. of letters = 9! = 9*8*7*6*5*4*3*2*1 = 362880
Number System If a + b = 16 and ab = 68, what is the value of a² + b² ? 120 124 112 116 120 124 112 116 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 16.23 x 12.9 + 17.32 = ? 226.687 246.687 236.687 None of these 226.687 246.687 236.687 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 16.23 x 12.9 + 17.32= 209.367 + 17.32= 226.687
Number System If A = 1, B = 3, C = 5 and so on, what do the numbers 3, 9, 7 stand for BED CAR CAT BAT BED CAR CAT BAT ANSWER EXPLANATION DOWNLOAD EXAMIANS APP BED
Number System On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is: 47619 48619 47719 47649 47619 48619 47719 47649 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP By hit and trail, we find that47619 * 7 = 333333.7) 333333 (47619 333333---------------- 0
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