For the following questions answer them individually
In a class of 50 students there are 27 boys. The average weight of these boys is 72 Kg and average weight of the full class is 55.44 kgs. What is the average weight (in kgs) of the girls of the class?
If a saree is sold for Rs 1900 the seller will face 5% loss, at what price (in Rs) should he sell the saree to gain 15% profit?
Pranita got 30 marks more in Math than what she got in Science. Her Math marks are 60% of the sum of her Math and Science marks. What are her Science marks?
To travel 432 km, an Express train takes 1 hour more than Duronto. If however, the speed of the Express train is increased by 50%, it takes 2 hours less than Duronto. What is the speed (in km/hr) of Duronto train?
What is the difference (in Rs) between the compound interests on Rs. 4000 for 1 year at 12% per annum compounded yearly and half-yearly?
If 7x - [3(2x - 3)]/2 = 1/2, then what is the value of x?
If a + b = 4 and ab = 3, then what is the value of $$a^{3} + b^{3}$$ ?
The sum of a fraction and 7 times its reciprocal is 11/2. What is the fraction?
The 3rd and 9th term of an arithmetic progression are -8 and 10 respectively. What is the 16th term?
What is the reflection of the point (1 , 2) in the line y = 3?
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