SSC CHSL 11 July 2019 Shift-3
For the following questions answer them individually
A, B and C, alone can do a piece of work in 9, 12 and 18 days respectively. They all started the work together, but A left after 3 days. In how many days, was the remaining work completed ?
If in  $$ \triangle ABC $$,D is a point on BC, such that BD : BC = 2 : 5, what is the ratio area$$(\triangle ABC) $$: area$$(\triangle ABD)$$? :
The given Bar Graph presents the percentages of population in the age groups, X(above 50 years), Y(20 to 50 years), Z(below 20 years) in five different villages, A, B, C, D and E with total population of 5000, 6000, 8000, 4500 and 6000 respectively.
What is the ratio of the total number of persons of ages above 50 years in the villages, B and C, taken together to the total number of persons having ages between 20 and 50 years in the said villages ?
 if $$ 2sin^{2}\theta+3sin\theta -2=0 $$ ,  $$ 0^\circ<\theta<90^\circ $$ then value of $$ \theta $$ is
If $$ a =\sqrt{8}-\sqrt{7} $$ and $$ a=\frac{1}{b} $$ then $$ \frac{a^{2}+b^{2}-3ab}{a^{2}+b^{2}+ab} $$ is equal to
The price of petrol is increased by 24%. A person wants to increase his expenditure by 14% only. By what percentage (correct to one decimal place), should he decrease his consumption in order to maintain the same level of expenditure ?
The difference between compound interest and simple interest on ₹x at 6.5% per annum for 2 years is ₹33.80. What is the value of x?
The simplified value of $$20 -[2.8 \times 5 + 0.7 - 3 \div 0.9 \times 1.53 + 2]$$ is equal to:
A person covers 40% of a distance with a speed of 60 km/h and the remaining with a speed of 40 km/h. What is his average speed for the whole journey in km/h?
