Number System The average of 7 numbers is 15, that of the first three is 6 and that of the last three is 23. What is the fourth number? 13 15 7 18 13 15 7 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4th No. = (Total of 7 Nos) - (Total of first three + total of last 3) = (15 x 7) - (6 x 3 + 23 x 3) = 105 - (18 + 69) =105 - 87 = 18
Number System If one-seventh of a number is 55 then 40% of that number = ? 171 154 147 163 171 154 147 163 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x , Therefore, x/7 = 55Therefore, x = 55 x 7 = 385Therefore, 49% of 385 = 154
Number System 4550 ÷ 25% of ? = 130 140 130 125 135 140 130 125 135 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 384×12×2=? 6123 9216 8465 7487 6123 9216 8465 7487 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9216
Number System Find the least number which when divided by 35 and 11 leaves a remainder of 1 in each case. 386 388 384 391 386 388 384 391 ANSWER DOWNLOAD EXAMIANS APP
Number System (2560 x 1.4) +(7400 x 0.6) =? 8024 9160 6543 7234 8024 9160 6543 7234 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8024
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