Question
By interchanging the given two signs which of the
following equation(s) will be correct? + and x; I. 16 x 9 + 2 ÷ 3 – 5 = 17 II. 43 x 11 – 44 ÷ 11 + 11= 10Solution
After interchanging + and x: I.  16 x 9 + 2 ÷ 3 – 5 = 17 L.H.S. 16 + 9 x 2 ÷ 3 – 5 = 16 + 18 ÷ 3 – 5 = 16 + 6 – 5 = 16 + 1 = 17 = R.H.S. Now for Eq. II II.  43 x 11 – 44 ÷ 11 + 11= 10 = 43 + 11 – 44 ÷ 11 x 11 = 43 + 11 - 4 x 11 = 54 - 44 = 10 = R.H.S.
A person borrows ₹5000 at 12% per annum simple interest. He repays ₹3200 at the end of 2 years. How much does he still owe after 2 years?
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What is the primary purpose of an operating system in a computer system?
In a right triangle, the sides are in the ratio 3:4:5. A circle is inscribed in the triangle. What is the area of the triangle covered by the circle?Â
If cos A = 4/5 and A is an acute angle, find the value of 3 tan A + 4 sec A.
A and B invested ₹50,000 and ₹75,000, respectively, in a business. After 6 months, A withdrew ₹10,000, and B added ₹25,000. At the end of the ye...
The derivative of y = eË£ · cos(x) isÂ
Find the distance between points A(2, 3) and B(7, 8).
If the homogeneous system of equations
x + y + z = 0
2x + 3y + 4z = 0
has a non-trivial solution, then the value of k is:
3x + 5y + kz = 0
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