Quantitative Aptitude - Arithmetic Ability Questions

Convert binary 1101111 to decimal.

Find the smallest 8 digit number which is exactly divisible by 121.

The difference between compound interest and simple interest on a sum for 2 year at 20% per annum is Rs 200. If the interest is compounded half yearly, then what is the difference (in Rs) between compound and simple interest for 1st year?

Sachin lent out Rs 60000 in two parts, first at 4% and the second at 10% interest. The yearly average interest comes out to be 6.4%. What are the amounts (in Rs) that were lent at 4% and 10% respectively?

What is the ratio of simple interest earned on certain amount at the rate of 12% for 6 years and that for 12 years?

If x+1x2 = 3, then the value of x3+1x3 is:

Gautam travels 160 kms at 32 kmph and returns at 40 kmph. Then average speed is

A canteen requires 56 kgs of rice for seven days . The quantity of rice required for the months of April and May together is