Question
Did you knew that the radio is ranked number two in the
list of ‘101’ Gadgets that changed the World according to History Channel? (Q.6-10) Read each sentence to find out whether there is any error in it. The error, if any, will be in one part of the sentence. If there is no error, mark the answer 5.Solution
“know” instead of “knew”.

(72 × 52 + 1555 )/(79+60) = 2000 ÷ ?
125 + 64% of 250 = 150 + ?
- Find the simplified value of the given expression:
9 of 6 ÷ 3 × 6² + √64 – 15 17.6% of 250 + √? = 70% of 90
Ravi is 12 years younger than Surya. Ravi's age is 40% of the sum of his and Surya's age. What will be Surya's age 9 years hence?Â
Find the simplified value of the following expression:
62 + 122 × 5 - {272 + 162 - 422}
690 ÷ (75% of 460) = ? ÷ (50% of 160)
What will come in the place of question mark (?) in the given expression?
642 - 362 = ? X √1225
18% of 200 - 16% of 150 = ?