The task is to generate the correct answer for a given math problem.

Q: Problem: zachary is helping his younger brother , sterling , learn his multiplication tables . for every question that sterling answers correctly , zachary gives him 3 pieces of candy . for every question that sterling answers incorrectly , zachary takes away two pieces of candy . after 6 questions , if sterling had answered 2 more questions correctly , he would have earned 31 pieces of candy . how many of the 6 questions did zachary answer correctly ?

A: 7
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Q: Problem: find out the c . i on rs . 5000 at 4 % p . a . compound half - yearly for 1 1 / 2 years ?

A: 306.04
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Q: Problem: . in digging a pond 20 m * 10 m * 5 m the volumes of the soil extracted will be ?

A:
1000
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