NIACL Model Paper 7 with solutions for free online practice

Question : 46 of 100

Marks: +1, -0

The average of five positive numbers is 308. The average of first two numbers is 482.5 and the average of last two numbers is 258.5. What is the third number?

224
58
121
Cannot be determined
None of these

Validate

Solution:

(2) Third number
=

5 × 308 - 2×4 82.5 - 2 × 258.5

= 1540 - 965 - 51 7 = 58

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