Select the most appropriate option to substitute the underlined segment in the given sentence. If there is no need to substitute it, select ‘No substitution required’.
I made them cleaning the room thoroughly.

120 men consume 720 kg of rice in 30 days. In how many days can 90 men consume 270 kg?

The value of 24 ÷ 4 ×(3 +3) ÷2 is:

Select the most appropriate word/s to fill in the blank.
Only ______ girls were present in the class today.

Select the most appropriate meaning of the given idiom.
Up in arms

How much time will it take for an amount of Rs.360 to yield Rs.72 as interest at 5 % p.a of simple interest?

Identify the segment in the sentence which contains the grammatical error.
The Government is setting up a special surveillance cell for epidemic-prone diseases at flood-ravaged Bihar.

The average weight of 8 people increase by 2.5 kg when a new person comes in place of one of them weighting 75 kg. What is the weight of the new person?