Quantitative Aptitude
A boat can travel 42 km in 6 hours while going upstream. If the speed of the stream is 2 km/h, then how much distance will the boat cover in 12 hours while going downstream?
The value of
is:
The perimeter of an equilateral triangle is 36 cm. What is the area of this triangle?
\(96\sqrt{3}\ \text{cm}^2\)
\(36\sqrt{3}\ \text{cm}^2\)
\(24\sqrt{3}\ \text{cm}^2\)
\(27\sqrt{3}\ \text{cm}^2\)
A can do a work in 10 days and B can do the same work in 15 days. If they work on it together for 4 days, then the fraction of the work that is left is:
\(\frac{2}{3}\)
\(\frac{3}{5}\)
\(\frac{3}{4}\)
\(\frac{1}{3}\)
The average of 11 observations is 10, that of the first 6 being 9 and that of the last 6 being 11. What is the 6th observation?
\(A = \frac12 \div \frac13 \times \frac14 + \frac15 \times \frac16\)\(B = \frac16 \div \frac13 \times \frac15 + \frac14 \times \frac12\)then What is the value of (A - B)
\(\frac{1}{5}\)
\(\frac{11}{60}\)
\(\frac{33}{35}\)
\(\frac{25}{36}\)
How much amount can a person get on a sum of ₹6,600, if it is invested at 6.2% per annum for a period of 2 years 6 months on simple interest?
P starts from A at 6 a.m. and reaches B after 8 hours. Q starts from B at 8 a.m. and reaches A after 9 hours. When they meet, what is the ratio of the distance travelled by Q to the distance travelled by P?
On an 18% discount sale, an article costs ₹6,560. What is the marked price of the article?