Questions

A person lent certain sum of money at 5% per annum simple interest and in 15 years the interest amounted to Rs 250 less than the sum lent. What was thesum lent (in Rs)?

A, B and C can complete a work in 20, 24 and 30 days respectively. All three of them starts together but after 4 days A leaves the job and B left the job 6days before the work was completed. C completed the remaining work alone. In how many days was the total work completed?

Sphalerite is an ore/mineral of

Which of the following is a CORRECT statement?

___ has naked seeds.

Which enzyme has been used by scientists of Massachusetts Institute of Technology to induce plants to give off dim light?

Using which of the following processes can one separate a solute from its solution?

Stars twinkle but planets do not twinkle because