What will come in place of the question mark (?) in the following question?
3.2% of 500 × 2.4% of ? = 230.4
Given Equation is,
3.2% of 500 × 2.4% of ? = 230.4
⇒ 0.032 × 500 × 0.024 × ? = 230.4
⇒ 0.384 × ? = 230.4
⇒ ? = 6004. Direction: Find the missing number in the following number series. 21, (?), 705, 2836, 8523, 17058
5. How many prime factors are there in the expression 1240 × 1448 × 254?
7. What is the compound interest accrued on a sum of Rs. 1,800 at the rate of 4% per annum in 2 years?
8. What will come in place of question mark '?' in the following question? (49 – 4) ÷ 9 = 175 ÷ 5 - ?
10. A 40 meter long truck takes 5 seconds to cross the pole. What is the speed of truck in km/hr?