Class 10 Important Question of Math and Science

 

1. Find the number of natural numbers between 101 and 999 which are divisible by both 2 and 5. 

2. Solve the following pair of linear equations: 21x + 47y = 110 and 47x + 21y = 162  

3. Prove that sin⁶ θ + cos⁶ θ + 3sin² θ cos² θ = 1  

4. Explain the mechanism of photosynthesis