A grocer has a sale of Rs. 6445, Rs. 6917, Rs. 6825, Rs. 7260 and Rs. 6562 for 5 consecutive months. How much sale (in Rs.) must he have in the sixth month so that he gets an average sale of Rs. 6500?

4900

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4891

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4991

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5120

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5891

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Solution

The correct option is C
4991

Let, the sale in the 6 $^{t h}$ month be x.

$\Rightarrow$ 6445 + 6917 + 6825+ 7260 + 6562 + x = 6 $\times$ 6500 = 39000

$\Rightarrow$ 34009 + x = 39000

$\Rightarrow$ x = 39000 - 34009 = 4991.

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A grocer has a sale of Rs. 6445, Rs. 6917, Rs. 6825, Rs. 7260 and Rs. 6562 for 5 consecutive months. How much sale (in Rs.) must he have in the sixth month so that he gets an average sale of Rs. 6500?

The correct option is C 4991 Let, the sale in the 6th month be x. ⇒6445 + 6917 + 6825+ 7260 + 6562 + x = 6 × 6500 = 39000 ⇒ 34009 + x = 39000 ⇒ x = 39000 - 34009 = 4991.

The correct option is C
4991

Let, the sale in the 6 $^{t h}$ month be x.

$\Rightarrow$ 6445 + 6917 + 6825+ 7260 + 6562 + x = 6 $\times$ 6500 = 39000

$\Rightarrow$ 34009 + x = 39000

$\Rightarrow$ x = 39000 - 34009 = 4991.