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Occasional pests, a close association with a particular crop is absent and they occur infrequently. Eg: Rice case worm. Persistent pests: Occur on a crop almost throughout the year. Eg: thrips on chilies. Sporadic pests: Occur on a few isolated localities. Eg: coconut slug caterpillar. Epidemic pest: Occur in a severe form in a region or locality at a particular season or time only. Eg: Rice hispa. Endemic pest: Occur regularly and confined mostly to a particular area or locality. Eg: Red hairy caterpillar in groundnut.
The compound interest on a certain sum, compounded half-yearly at an annual rate of 20% for one year, is Rs. 540 less than the simple interest on the sa...
Two trains start from points A and B, 300 km apart, and travel towards each other. Train 1 starts from A at 60 km/h, while Train 2 starts from B at 40 k...
Compound interest on a certain sum of money for 2 years is Rs.2660 while the simple interest on the same sum for the same time period is Rs.2500. Find t...
The simple interest on a sum of money will be Rs. 800 after 10 years. If the principal is tripled after 5 years, what will be total interest at the end ...
Divide Rs. 53,285 into two parts such that the amount received from first part after 12 years is equal to the amount received from second part after 8 y...
A sum of money amounts to Rs 1024 in 4 years and Rs 1458 in 7 years at a compound rate of interest. What is the rate of interest per annum?
A person took a loan of Rs 1500 from an investor for at 20% p.a. on compound interest for 2 years. But he paid only 80% of amount after 2 years. And inv...
A sum of rupees 5,000 is invested at 15% per annum compound interest for 1.5 years, compounded half-yearly. What will be the final amount?
The compound interest on a sum of ₹ 5,500 at 15% p.a. for 2 years, when the interest is compounded 8 monthly, is:
A person invested ₹15000 in a scheme for 3 years at 8% compound interest, compounded annually. After 3 years, the person decided to withdraw the amoun...
