Math crossword

2. Ram worked out the temperature of the day by counting 31 cricket chirps in 15 seconds. He used the following formula for the Temperature:
4. 2^(y )=1024 the y is
8. Numerator and denominator of any rational number should be -----
10. 800 students attend Junior College. 12% of them are in Year 12.25% of Year 12 students study French.of all the students at College, how many are not in the Year 12 French class?
11. Product of three consecutive number is always divisible by .
12. Who is the father of Indian Mathematics?
14. When two identical integers are multiplied together to from a _
15. In parallel and transversal __________ angles are supplementary

1. Line oining the midpoints of parallel sides of an isosceles trapezium is ________
3. When two or more numbers are added or multiplied by grouping any order then its result is unchanged.
5. A _____________ number is a natural number or a positive integer which has more than two factors.
6. How many prime numbers between 60 to 80?
7. When a number is divisible by 8, then how many possible remainders are there other than zero.
9. when two prime numbers have only one composite numbers then two numbers are called
13. of triangle meets at centroid