The length of diagonal BD of a parallelogram ABCD is 36 cm. P and Q are the centroids of triangle ABC and triangle ADC respectively. What is the length (in cm) of PQ? 

Ganesh, Shankar and Sameer invested Rs. 4200, Rs. 8400 and 5400 respectively while starting a business. At the end of the year, they earned a profit of Rs. 24,000. Sameer invested 32% of. his share of the profit in a saving scheme. How much amount he is left with?

How many natural numbers less than 1000 are divisible by 5 or 7 but not by 35?

Ram saves 14 % of his salary while Shyam saves 22 % . If both get the same salary and Shyam saves 1540, what is the savings of Ram? 

Ram and Shyam can do a work in 12 days, Shyam and Hari in 15 days, and Hari and Ram in 20 days. Accordingly, in how many days can Rama alone complete that work?

If four coins are tossed together, what is the probability of at least getting 2 heads?

Which of the following fractions is greater than $$ {3\over 4}$$  and less than $$ {5\over 6}$$?

Sharikh got 32% discount on the marked price of a car and paid Rs. 153000 for the car. If the discount be 5%, what will be the, cost of car ?