In a stationary shop, a pen is marked as ₹80 and it is sold at a discount of 15%. The shopkeeper also offers a special discount of ₹8 on the pen. Find the cost price of the pen if the shopkeeper earns a profit of 20%.
Refer the following data table and answer the question.
| Measured on Birthday | Height of the child (in cm) |
| 5 | 130 |
| 6 | 145 |
| 7 | 162 |
| 8 | 170 |
What was the increase in the height (in cm) of the child from the 7th birthday to the 8th birthday?
If the height of a triangle is 45 cm and base is 70 cm, then the area of the triangle is:
The speeds of three trains are in the ratio 5 : 3 : 7. What is the ratio of the time taken by them to travel the same distance?
\(\frac{1}{4} : \frac{1}{2} : \frac{1}{7}\)
\(\frac{1}{8} : \frac{1}{5} : \frac{1}{9}\)
\(\frac{1}{5} : \frac{1}{3} : \frac{1}{7}\)
\(\frac{1}{6} : \frac{1}{5} : \frac{1}{3}\)
₹7,000 becomes ₹7,567 in 2 years at simple interest at a certain rate percentage. Find the principal amount (in ₹) that will become ₹24,050 in 5 years at the same rate of interest.
The demand and production for five businesses, V, W, X, Y, and Z, are shown in the accompanying chart, which illustrates them using a basic bar graph to provide an answer.
If the demand of company Z is k times than that of company W, then find the value of k.