Number System If one-seventh of a number is 55 then 40% of that number = ? 163 147 154 171 163 147 154 171 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 The sum of the two numbers is 12 and their product is 35. What is the sum of the reciprocals of these numbers? 7/32 12/35 1/35 35/8 7/32 12/35 1/35 35/8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be a and b. Then,a + b = 12 and ab = 35.(a + b)/ab = 12/35= (1/b + 1/a) = 12/35Sum of reciprocals of given numbers = 12/35.
Number System Find the average of the following set of scores 450, 1050, 12, 390, 143, 286, 550, 999 490 495 485 480 490 495 485 480 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Required average score = (450 + 1050 + 12 + 390 + 143 + 286 + 550 + 999) / 8 = 3880 / 8 = 485
Number System If 70% of an equal to 40% of b, then ratio between a and b is? 7: 4 4: 7 7: 11 None 7: 4 4: 7 7: 11 None ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 70 a = 40 ba: b = 4: 7
Number System If three eighth of a number is 141. What will be the approximately value of 32.08% of this number? 160 90 120 60 160 90 120 60 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 3/8 = 141 => x= 376376 * 32.08/100 = 120
Number System Difference between two numbers is 5, six times of the smaller lacks by 6 from the four times of the greater. Find the numbers? 12, 7 11, 6 12, 9 10, 5 12, 7 11, 6 12, 9 10, 5 ANSWER DOWNLOAD EXAMIANS APP
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