Q2. The difference between cost price and selling price is Rs 575. If proﬁt percentage is 23%, then what is the selling price (in Rs)?
Q3. A merchant marks the price of his articles 20% above the cost price. If he allows 20% discount, then what is the proﬁt or loss percentage?
(a) 2% loss
(b) 4% proﬁt
(c) 4% loss
(d) No proﬁt/loss
Q4. What is that least digit that must be added to the product 5786 × 5784 to make it a perfect square?
Q5. 20 boys do one fourth of work in 25 days. How many more boys will be required to complete the remaining work in 50 days?
Q6. When Gopal walks from A to B and returns from B to A on cycle, then it takes him 46 minutes. By walking both ways, it takes him 75 minutes. If he rides cycle both ways then what will be the total time (in minutes)?
Q7. A train left 1 hour later than the scheduled time but in order to reach its destination 200 km away in time, it had to increase its usual speed by 10 km/hr. What is the usual speed (in km/hr) of the train?
Q8. The length of the diagonal of a square is 12 cm. Find its area (in cm²).
Q9. If the measure of the exterior angle of a regular polygon is 72° then how many sides does it have?
Q10. Find the curved surface area (in cm²) of a right circular cylinder of diameter 7 cm and height 6 cm.