SSC Government Jobs Exams Numerical Ability Ratio and Proportion

A and B are two alloys of gold and copper prepared by mixing metals in the ratio 7:2 and 7:11 respectively. If equal quantities of the alloys are melted to form a third alloy C, the ratio of gold and copper in C will be-

a. 5 : 7
b. 5 : 9
c. 7 : 5
d. 9 : 5

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SSC Other Question

The batting average for 40 innings of a cricketer is 50 runs. His highest score exceeds his lowest score by 172 runs. If these two innings are excluded, the average of the remaining 38 innings is 48 runs. The highest score of the player is-

a. 165
b. 170
c. 172
d. 174 If 0 < a < 1, then the value of a + 1/a is —

(A) Greater than 2

(B) Less than 2

(C) Greater than 4

(D) Less than 4