If the cost of a calculator worth Rs 250 is increased by Rs 100, the rate of increase is
40%
25%
none
100%
A number increased by 37.5% gives 99 the number is
140
72
48
61.5
Ram sells his goods 25% cheaper than Shyam and 25% dearer than Bram. How much percentage is Bram’s goods cheaper than Shyam’s ?
55 %
50%
66.66%
40%
33.33%
In a exam 52% of the candidates failed in science, 42% in maths and 17% in both. The number of those who passed in both the subjects is
83%
64%
23%
42%
55.5%
The price of an item is increased by 20% and then decreased by 20%. The final price as compared to original price
5 % more
20% more
20% less
4% less
4% more
If A's height is 40% less than that of B, how much percent B's height is more than that of A?
66.66%
76.66%
56.66%
86.66%
96.66%
A student multiplied a number by instead of , What is the percentage error in the calculation?
54 %
64%
74%
45%
84%
If the income tax be reduced from % 
A man spent 12.50% of his money and after spending 75% of the remainder, he had Rs 175 left. How much had he at first?
Two numbers are respectively 20% and 50% more than a third number. What percentage is the first of the second?
Out of the 75 students enrolled in the Economics class, 12% did not qualify to take the final examination on account of lack of attendance. Of those who qualified to take the test, 9.09% absented themselves from the exam. Two-third of those who took the exam passed the examination. 75% of those who passed secured a first class in the paper. How many students who pass the exam scored less than first class?
15
10
14
None of these
12
The price of a P&G product is collectively decided by five input factors viz. research, raw materials, labour, advertisements and transportation. The functional relationship of price with these factors is: Price = (k × Research costs × Raw material costs × Labour costs × Advertising cost × Transportation cost) if there are respective changes of 10%, 20%, -20%, 25% and 50% in the five factors, then find the change in the price of product.
85%
95%
98%
80%
none of these
The average age of 24 boys and the teacher is 15 years. When the teacher’s age is excluded, the average decreases by 1. What is the age of the teacher?
Data inadequate
The average salary per month of 30 employees in a company is Rs. 4000. If the manager’s salary is added, the average salary increases to Rs. 4300, what is the salary of the manager?
Rs. 10000
Rs. 12500
Rs. 12000
Rs. 13300
Rs. 13000
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Physics class XII
this should work
Demo
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