Question

The average of four numbers is 90. Two of the numbers

Q: Answer-The average of four numbers is 90. Two of the numbers are equal (not least), and 40 more than the le...

ATQ, Let the two equal numbers be e each Therefore, least number e 40 4th number 5e 40 According to the question, 5e 40 e 40 e e 4 90 Or, 8e 240 360 Or, e 6008 75 Therefore, 4 numbers are 75, 75, 35, and 175 Therefore, required average 175 352 105

are equal (not least), and 40 more than the least number. If the 4th number is five times the least number then find the average of smallest and largest number.

A 120

B 150

C 162

D 105

E None of these

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