In the fig. ∆ABC is inscribed in a circle with centre O. If ∠ABC = 30° then ∠ACB is equal to
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The simplified form of (4x + 3)2 . (3x - 5) - (4x3 - 12x2 + 9x - 20) is
Reduce 2530/1430 to lowest terms.
If 21% of an electricity bill is discounted, Rs 1817 is still to be paid. How much was the original bill amount?
If a shopkeeper sells an item at Rs 4200 which is marked as Rs 4800, then what is the discount (in %) that he is offering?
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)?
Ram travels 4/9th of the total journey by bus, 5/18th by rail and the remaining 10 km on foot. Find the distance of total journey.
The sum of the ages of husband and wife at present is 56. Ten years ago the product of their ages was 320. What is the age of the husband and the wife?