Advertisements
Advertisements
प्रश्न
A boy got 60 out of 80 in Hindi, 75 out of 100 in English and 65 out of 70 in Arithmetic. In which subject his percentage of marks the best? Also, find his overall percentage.
उत्तर
A boy gets in Hindi = 60 out of 80
∴ Percentage marks = `60/80xx100` = 75%
He gets in English 75 out of 100 = 75%
and he gets in Arithmetic, 65 out of 70
= `65/70xx100=650/7%=92 6/7%`
We see that he gets best marks in Arithmetic
Now total marks he gets = 60 + 75 + 65 = 200
Total marks = 80 + 100 + 70 = 250
Percent marks obtained = `200/250xx100` = 80%
APPEARS IN
संबंधित प्रश्न
Find the number a, if 8.4% of a is 42
A number is increased from 125 to 150; find the percentage increase.
A number is decreased from 125 to 100; find the percentage decrease.
A number when decreased by 16% becomes 798 ; find the number.
70% of our body weight is made up of water. Find the weight of water in the body of a person whose body weight is 56 kg.
The salary of a man is ₹ 7,200 per month, which is now increased by 8%. Find his new salary per month.
Approximately 97.3% of the water on the earth is not fit for drinking. Find:
(i) the percentage of water on the earth that is fit for drinking.
(ii) The total volume of water available in certain parts of the earth where there are 21,600 m3 of drinking water.
A student gets 31% marks in an examination but fails by 12 marks. If the pass percentage is 35%, find the maximum marks of the examination.
Sunscreens block harmful ultraviolet (UV) rays produced by the sun. Each sunscreen has a Sun Protection Factor (SPF) that tells you how many minutes you can stay in the sun before you receive one minute of burning UV rays. For example, if you apply sunscreen with SPF 15, you get 1 minute of UV rays for every 15 minutes you stay in the sun.
A label on a sunscreen with SPF 30 claims that the sunscreen blocks about 97% of harmful UV rays. Assuming the SPF factor is accurate, is this claim true? Explain.
250 cm is 4% of 1 km.