Question
A person invests ₹25,000 in a scheme offering 12%
annual simple interest. After 3 years, the amount is withdrawn and some amount invested in another scheme offering 15% annual simple interest. If the total interest earned after 8 years is ₹13,500, find the principal amount invested in the second scheme.Solution
Interest from the first scheme: Simple Interest = P × R × T / 100 = 25,000 × 12 × 3 / 100 = ₹9,000 Total interest earned = ₹13,500 Interest from the second scheme = ₹13,500 - ₹9,000 = ₹4,500 Let the principal in the second scheme be P. Simple Interest = P × 15 × 5 / 100 = P × 75 / 100 = 3P / 4 3P / 4 = 4,500 P = 4,500 × 4 / 3 P = ₹6,000 Thus, the principal invested in the second scheme is ₹6,000.
Aflatoxins are present in food commodities like:
Options:
1. Ground nuts
2. Wheat
3. Maize
4. Rice
The synthesis of complex substances from simpler ones in living organisms is called:
(i) Virus (a) E.coli
(ii) protozoan (b) hepatitis A
(iii) bacteria (C ) plasmodium
(iv) fungi (d) Ringworm
is the operating temperature of refrigerator.
___________is the yellow green pigment of skim milk.
Ropiness in bread is caused by
What will be the concentration of nitric acid in mole per litre in a sample which has density 1.41 gm L⁻¹ and the mass percent of nitric acid if bein...
The flour improver used for improving dough quality is
Maturity index for Avocado is:
Enzyme hydrolyzing bacterial cell wall is called
