Question
On selling 32 chairs at Rs. 2800, there is a loss equal
to the cost price of 4 chairs. The cost price of a chair is:Solution
SP of 32 chairs = Rs. 2800 Then, SP of 1 chair = 2800/32 = 87.5 Let the cost price of one chair be CP. Loss occurred due to selling 32 chairs = cost price of 4 chairs L × 32 = 4 × CP L = CP/8 SP = CP - L 87.5 = CP - CP/8 CP × (7/8) = 87.5 CP = Rs. 100 ∴ Cost price of each chair be Rs 100.
(408 × 680)÷(20% of 680) = (250 × 260)÷ 10 + ? – 4500
If x + y + z = 7, x² + y² + z² = 85 and x³ + y³ + z³ = 842, then the value of √3 xyz is:
...If x = (2+√3)/(2-√3), y = (2-√3)/(2+√3)
Then find out the value of (x²+y²-xy)/(x²+y²+xy)
If x : y : z = 6 : 7 : 11, and (2x + 3z) = 180, then find the value of y.
If 1/(x+ 1/(y+ 1/z)) = 13/30, then find x+y+z= ?
If (a + b) = 9 and ab = 14, find the value of (a² + b²).
Find the number of zeroes in 18 × 125 × 20 × 32.
(p + q) = 8 and (p2 + q2Â - 6) = 28. If p < q, then determine the value of (p/q).
Relevant for Exams:
