Number System How many times the keys of a typewriter have to be pressed in order to write first 400 counting numbers? 1092 1192 1200 1082 1092 1192 1200 1082 ANSWER DOWNLOAD EXAMIANS APP
Number System Subtracting 30 from a number, the remainder is one fourth of the number. Find the number? 45 30 40 22 1/2 45 30 40 22 1/2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3/4 x = 30 => x = 40
Number System What is the average of the following set of numbers ? 173, 192, 198, 204, 211, 223, 227 234 204 222 210 234 204 222 210 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Avg = 173 + 192 + 198 + 204 + 211 + 223 + 227/7 = 1428/7 = 204
Number System The sum of the squares of three numbers is 138, while the sum of their products taken two at a time is 131. Their sum is: 20 30 None of these 40 20 30 None of these 40 ANSWER DOWNLOAD EXAMIANS APP
Number System What will be the next number in the following number series ? 162 177 191 182 162 177 191 182 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1² + 1, 3² + 3, 5² + 5, 7² + 7
Number System 4/6 of 6/5 of 5/7 of a number is 96. Find the number. 168 162 164 170 168 162 164 170 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 4/6 x 6/5 x 5/7 = 96∴ x = 96 x 6 x 5 x 7/4 x 6 x 5 = 168
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