X, Y and Z can do a piece of work in 30, 40 and 50 days respectively. All three of them began the work together but Y left 4 days before completion of the work. In how many days was the work completed?
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15 years ago Cynthia was thrice as old as Brittany. The sum of their present ages is 94 years. How old is Brittany now?
If x = 313- 3-13, then 3x3 + 9x value is
∆PQR is right angled at Q. If m∠R = 45°, then find the value of (cosecP - √3/2)
The simplest value of 38-212+20318-227+45 is
If a3- b3= 91 and a - b = 1, then what is the value of ab?
The cost price of an article is x. It is marked up by 150%. It is sold at Rs 600 after giving 40% discount. What is x (in Rs)?
The marked price of an article is Rs 960 and it is sold at a discount of Rs 192. What is the discount percentage?
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