SSC GD 9th Dec 2021 Shift-3

The expressi. on $$2 \div 2 of \frac{1}{2} + 2. 5 \times 2 \div 5 \times \frac{3}{5} of \frac{1}{3} - 0.5 \left(2.5-\frac{1}{2} \times 2 \div \frac{1}{2}\right)$$, on simplification, gives the result as:

A man covers a certain distance at a uniform speed in 5 hours. If he increases his speed by 1 km/h, then he takes 10 minutes less. What is the speed (in km/h) of the man?

A, B and C working together can complete a work in 16 days. If A and B work together, they can complete the same work in 18 days. If B and C work together they can complete the same work in 24 days. In how many days can A and C complete the same work?

The average age of the students in a school is 13.2 years. The average age of the boys is 14.4 years and that of the girls is 12.3 years. The ratio of the number of girls to that of the boys is:

What is the ratio of the fourth proportional to 5, 8, 15 and the third proportional to 12 and 30?

Select the most appropriate option to fill in the blank.
We must plant and ______ at least one tree every year.

Select the most appropriate ANTONYM of the given word.
Generous

Select the correctly spelt word.

Select the most appropriate option that can substitute the underlined word in the given sentence. If there is no need to substitute it, select ‘No substitution required’.
The Prime Minister as well as his ministers want peace in the country.

The following sentence has been split into four segments. Identify the segment that contains a grammatical error.
If he were / to climb the tree / and bring the kitty down, / the child was happy.