a man buys few books at rs 72 each and few pens at rs 25 each .if he buys 11 articles and pays rs 510 find the number of each article bought by him

Given :

A man buys a few number of books at RS 72 each and a few number of pens at RS 25 each .

To Find :

If he buys 11 articles and pays RS 510 altogether,find the number of each article bought by him .

Solution:

Total no. of article = 11

Let x be the no. of books bought for RS 72 each

So, No. of pens bought for RS 25 each = 11-x

Cost of x books = 72x

Cost (11-x) pens = 25(11-x)

He buys 11 articles and pays RS 510 altogether

So,72x+25(11-x)=510

72x+275-25x=510

47x=510-275

x=5

So,No. of pens bought for RS 25 each = 11-x=11-5=6

Hence 6 pens and 5 books were bought by him.

Step-by-step explanation:

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?

answer: -0.5 would be the most likley outcome

step-by-step explanation: