Z-test is used when sample size is large (>30) and population standard deviation is known.
A seller marked his article 80% above the cost price and sold it after offering two successive discounts of 60% and 25% respectively. In the whole trans...
A shopkeeper sold an article after giving a discount of 20% and made a profit of Rs. 70. Find the marked price of the article if cost price of the artic...
Who is the excavator of Harappa site?
Consider the following pairs:
Which of the above pairs...
In an office, the ratio of the number of males to number of females is 11:8. If 4 males joined the class and 6 females left the class, then the ratio of...
If A varies directly as B and inversely as C and A = 10, B = 5 and C = 6, what is the value of A when B = 5 and C = 4?
Why did the Congress declare 9th May to be 'Ethiopia Day'?
Which of the following statements about Preamble is correct?
Which dynasty was the contemporary to Gupta Empire in the Indus valley defeated by Hunas in the 5th century?
The parallel sides of a Trapezium is 20 and 46cm respectively and the non-parallel sides were 10 cm and 24 cm respectively. If the non-parallel sides we...
