Question

9. a. Find the inverse of the matrix
A=2. 4
6. 13

b. a person is appointed on the basic salary of Rs. 1000 a month and gets an increment of Rs. 50 every year.
He contributes 10% of his salary to provident Fund. What will be the total contribution to Provident Fund
during his 25 years of service?

10. a. In an examination, 70% of the students passed in English, 65% passed in Mathematics and 27% failed
in both the subjects and 248 students passed in both. Find the total number of students who appeared for the
examination

b. Find the amount of an annuity of Rs. 4000 per annum for 10 years reckoning CI at 10% per annum
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Answer 1

Answer:

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Step-by-step explanation: