Question
Select the correct sequence of mathematical signs that
can sequentially replace the ‘#’ signs and balance the given equation. 56 # 8 # 4 # 32 # 2 = 40Solution
56 # 8 # 4 # 32 # 2 = 40 56 – 8 × 4 + 32 ÷ 2 = 40 56 – 32 + 16 = 40 24 + 16 = 40 So, the correct sequence of signs is –, ×, +, ÷.
Sum of digits of a two-digit number is 9. When 27 is subtracted from the number, its digits get interchanged. Find the original number.
Find the sum of the first 15 natural numbers.
- Find the remainder when the number (289n + 119) is divided by 17.
Find the sum of the first 10 natural numbers.
If the 6-digit number '5a1897' is divisible by '11', determine the value of 'a'.
A waiter income consist of his salary and tips. During one week his tips were 4/5 of his salary. What portion of his income came from tips?
Christina spends half of her salary and saves the other half. If she spends ₹ 40,000 monthly, what is her annual savings?
If '3849x' is a five digit number which is divisible by 91, then find the value of 'x'.
- What should be subtracted from 64 and 40 to make the ratio of resulting numbers 3:1?
