SSC CHSL 19th April 2021 Shift-3

A shopkeeper charges ₹1.50 to photocopy a sheet of paper and a discount of 5.5% is given on all photo copies done after 400 sheets. How much will it cost to photocopy 800 sheets of paper?

A man walkingat a rate of 4 km/h crossed a tunnelin 18 minutes. Whatis the length of the tunnel in meters?

If the perimeter of a circle is 88 cm, then whatis the area of the circle? ($$\pi = \frac{22}{7}$$)

The ratio of boys andgirls in a schoolis 6 : 7. If the total number of students in the school is 3289, then whatis the number of girls?

The value of $$(86 \div 20) - \frac{13}{8} of \left(\frac{1}{3} - \frac{2}{13}\right) + \left(\frac{1}{8} \div \frac{3}{7}\right) + \left(2 - \frac{3}{10}\right)$$ is:

If $$a^2 + 49 b^2 + c^2 + 18 = 2(28 b - c - a)$$ then the value of $$(a + 7b - c)$$ is:

P and Q can complete a work in 9 days and 15 days, respectively. If they work together for three days, then in how many days will the remaining work be completed by Q alone?

The length of the base ofa triangle is 3 cm smaller than the length ofits altitude. Its area is 104 cm$$^2$$, What is the length of the base?

In how many years, the compound interest, if compounded annually on a sum of ₹60,000 at rate of 8% per annum is ₹9,984?

If $$\frac{\sin \theta + \cos \theta}{\sin \theta - \cos \theta} = 3$$, then the value of $$\sin^4 \theta - \cos^4 \theta$$ is equal to: