Questions and answers from this day. Play today's quiz to build your streak.
Question 1 · Linear equations
Answer: 5. Subtract 3 from both sides: 8x = 40. Divide by 8: x = 5.
Question 2 · Ratios
Answer: ₹28. 5 + 7 = 12 equal parts. One part = ₹48 ÷ 12 = ₹4. Sam gets 7 parts = ₹28.
Question 3 · Simple interest
Answer: ₹3,240. Simple interest = P × R × T ÷ 100 = 9000 × 9 × 4 ÷ 100 = ₹3,240.
Question 4 · Square roots
Answer: 11. 11 × 11 = 121, so √121 = 11.
Question 5 · Discounts
Answer: ₹1,120. 20% of ₹1,400 = ₹280. ₹1,400 − ₹280 = ₹1,120.
A teacher can help you master the topics above. Contacting teachers on TeacherCircle is free.