Question

A man purchased 450 pens of 3 types such that he earned a profit of 9% ,10% nd 12% respectively on each type .He earned a profit of 66/7% on 1st two types nd 10% lverall profit on all types .find the number of pens in all the three types ???

Answer 1

Step-by-step explanation:

ʜᴏᴘᴇ ɪᴛ ᴡɪʟʟ ʜᴇʟᴘ ʏᴏᴜ ᴍʏ ᴅᴇᴀʀ ғʀɪᴇɴᴅ

Answer 2

Answer:

Concept:

Mixture is a combination of one or more elements to form a third element. The questions from aggregate are typically primarily based on Ratio and percentage and do no longer require any special formulation.

Alligation is a rule that enables us to quickly calculate the price of a aggregate, given that it's miles a combination of two factors having one-of-a-kind expenses.

Explanation:

A=9

B=10

A and B is $\frac{66}{7}$

By deriving it we will get,

A:B=4:3

A+B=$\frac{66}{7}$

C=12

A+B:C=14:4

A+B:C=7:2

A:B:C=4:3:2

•°• 9 -> 450

    1 -> 50

A = 4×50=200

B = 3×50=150

C = 2×50=100

• A = 200

• B = 150

• C = 100

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