The LCM of two numbers is 1920 and their HCF is 16. If one of the numbers is 128, find the other number.

$$ {4\over 7}×{2{4\over 5}} ÷{2\over 5}=?$$

Answer the following questions

Rama dealing in bedsheets allows 4% discount on the marked price. What price must be marked on a bedsheet that cost Rs. 480 so as to make a profit of 10%?

The height of a solid cylinder is 30 cm and the diameter of its base is 10 cm. Two identical conical holes each of radius 5 cm and height 12 cm are drilled out. What is the surface area (in cm²) of the remaining solid?

If $${8+2\sqrt{3} \over 3\sqrt{3}+5}=a\sqrt{3}-b$$, then the value of a+b is equal to:

By selling an article at 3/4th of the marked price, there is a gain of 25%. The ratio of the marked price and the cost price is-

A sold a mobile phone to B at a gain of 25% and B sold it to C at a loss of 10%. If C paid ₹5,625 for it, how much did A pay (in ₹) for the phone?

A shopkeeper offers the following three schemes. Scheme-I: Two successive discounts of 15% and 25% Scheme-II: Buy 5, get 3 free Scheme-III: Buy 4, get 6 Which scheme is the best for customers?