# Thread: Some OG11 questions on DS--Need solutions.

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## Some OG11 questions on DS--Need solutions.

1. Is r/s a terminating decimal?
a)90<r<100
b)s=4

2.Official Guide-11, DS question #117 .My answers was E as there are no figures for the lengths.

3. Official Guide 11, DS Question 124 on the area of triangle.My answer was C.

Best Regards
Akshat

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Q 1 - B

a - insuff info
b - denominator with multiples of 4 will give terminating decimals

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Originally Posted by Divin
Q 1 - B

a - insuff info
b - denominator with multiples of 4 will give terminating decimals
The answer for the first question is E and not B...

How can you even start solving just using B when the value of S in not given at all!
If we think of C, then this is the explaination why it cannot be C -
We need to find out if R/S is terminating or not...( we need to find a unique answer.. yes or no). So, in case of 92 and 96.. the figures are not terminating

Hence, the answer should be E

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If the denominator is a factor of 2 or 5 you will always have a terminating decimal.

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Can someone por favor, el seņor answer the 2nd and 3rd questions?

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