Here’s and example of a **SMART MATH** problem for **RATIO PROPORTION.**

**Problem**

**Problem**

If 5/7 of an integer is 1125, 4/7 of the same integer will be…

- 5625
- 4500
- 7875
- 900
- 1124

**The Usual Method**

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5/7 of *x* = 1125

= 225 x 7 = 1575

4/7 of 1575 = = 900

**(Ans: 4)**

*Estimated Time to arrive at the answer = 45 seconds.*

**Using Technique**

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Simply find those options that are multiples of 4. This is because the answer is x some integer. In this case, the multiples of 4 are options ‘2’, ‘4’ and ‘5’. Of these, option ‘2’ can be eliminated as x some integer < x some integer, but in case of option ‘2’, 4500 > 1125.

Also option ‘5’ can also be eliminated as 1124 is very close to 1125. Hence, answer is option ‘4’.

**(Ans: 4)**

*Estimated Time to arrive at the answer = 10 seconds.*

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