The age distribution of 40 children is as follows :
| Age (in years) | 5–6 | 6–7 | 7–8 | 8–9 | 9–10 | 10–11 |
|---|---|---|---|---|---|---|
| No. of children | 4 | 7 | 9 | 12 | 6 | 2 |
1. The median of the age distribution is 7 years.
2. 70% of the children are in the age group 6–9 years.
3. The modal age of the children is 8 years.
Which of the above statements are correct?
1 and 2 only
2 and 3 only
1 and 3 only
1, 2 and 3
For election to the Lok Sabha, a nomination paper can be filed by
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In a month if the seventh day is three days earlier than Saturday,then the nineteenth day of the month will be a
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Which among the following events happened earliest ?
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An 80-litre solution of alcohol and water has 75% alcohol. How much water (in litres) must be added to bring down the concentration of alcohol to 60%?
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