A grocer has a sale of Rs. 6,435, Rs. 6,927, Rs. 6,855 Rs. 7,230 and R

1.	A grocer has a sale of Rs. 6,435, Rs. 6,927, Rs. 6,855 Rs. 7,230 and Rs. 6,562 for 5 consecutive months. How much sale must he have in the sixth month so that he gets an average sale of Rs. 6,500 ?1. Rs. 6,0012. Rs. 5,9913. Rs. 4,9914. Rs. 6,991
Answer» Correct Answer - Option 3 : Rs. 4,991 Given: Five consecutive months sale = Rs. 6,435, Rs. 6,927, Rs. 6,855, Rs. 7,230, Rs. 6,562 Six consecutive months average sale = Rs. 6,500 Formula Used: Average = sum of values/number of values Calculation: Let sale of sixth month be Rs. x Sum of sales of six consecutive months = Rs. (6435 + 6927 + 6855 + 7230 + 6562 + x) ⇒ Rs. (34009 + x) Number of months = 6 Average of sales of six consecutive months = Rs. (34009 + x)/6 ⇒ Rs. 6500 = Rs. (34009 + x)/6 ⇒ 6 × 6500 = 34009 + x ⇒ 39000 = 34009 + x ⇒ x = (39000 – 34009) ⇒ x = 4991 ∴ Rs. 4,991 sale must he have in the sixth month so that he gets an average sale of Rs. 6,500

A grocer has a sale of Rs. 6,435, Rs. 6,927, Rs. 6,855 Rs. 7,230 and Rs. 6,562 for 5 consecutive months. How much sale must he have in the sixth month so that he gets an average sale of Rs. 6,500 ?1. Rs. 6,0012. Rs. 5,9913. Rs. 4,9914. Rs. 6,991

Answer» Correct Answer - Option 3 : Rs. 4,991

Given:

Five consecutive months sale = Rs. 6,435, Rs. 6,927, Rs. 6,855, Rs. 7,230, Rs. 6,562

Six consecutive months average sale = Rs. 6,500

Formula Used:

Average = sum of values/number of values

Calculation:

Let sale of sixth month be Rs. x

Sum of sales of six consecutive months = Rs. (6435 + 6927 + 6855 + 7230 + 6562 + x)

⇒ Rs. (34009 + x)

Number of months = 6

Average of sales of six consecutive months = Rs. (34009 + x)/6

⇒ Rs. 6500 = Rs. (34009 + x)/6

⇒ 6 × 6500 = 34009 + x

⇒ 39000 = 34009 + x

⇒ x = (39000 – 34009)

⇒ x = 4991

∴ Rs. 4,991 sale must he have in the sixth month so that he gets an average sale of Rs. 6,500

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