1100 boys and 700 girls are examined in a test; 42% of the boys and 30% of the girls pass. The percentage of the total who failed is :
Lime is sometimes applied to soil in order to
A sum of money amounts to Rs.6690 after 3 years and to Rs.10,035 after 6 years on compound interest.find the sum.
Two concentric circles form a ring. The inner and outer circumference of the ring are 352/7 m and 528/7m respectively.Find the width of the ring.
The True discount on Rs1760 due after a certain time at 12% per annum is Rs160. The time after which it is due is?
Simplify 39.96% of 649.85 ÷13.07 = 45.14 – ?
What is the percentage of India’s population to the world population
A man pays Rs. 6.40 per litre of milk. He adds water and sells the mixture at Rs. 8 per litre, thereby making 37.5% profit. The proportion of water to milk received by the customers is
What is the string contained in s after following lines of code? StringBuffer s = new StringBuffer(“Hello”); s.deleteCharAt(0); ?
Which country has the most coal reserves?