In a box there are 5 black pens,3 white pens and 4 red pens .In how many pens can 2 black pens , 2 white pens and 2 red pens can be chosen ?

Among 3 bags B_1, B_2, B_3 there were 4 blue pens and 5 red pens in B_1, 4 blue pens and 3 red pens in B_2, 2 blue pens and 4 red pens in B. One pen is drawn from each bag. What is the probability that out of these 3 pens drawn, two are blue and one is red. (A) 11/ 189 (B) 55/189 (C) 64/ 189 (D) 8/189

We can hold a pen due to the

If 192 pens cost is ₹10, how many pens can be bought for ₹5?

In a bag which contains 60 pens , there are 27 blue pens and some black and red pens . If two pens are picked up from the bag without replacement , then the probability of the first pen being blue and second being black is 9/59.Find the number of red in the bag .

Statements: 1. Some papers are pens 2. Some pencils are pens Conclusions: 1. Some pens are pencils 2. Some pens are papers

At a stationery shop it costs Rs 185 for 4 gel- pens,8 ball-point pens and one marker pen and Rs315 for 7 gel-pens,15 ball-point pens and one marker pen.Then what would be the cost of one gel-pen,one ball-point pen and one marker pen? (a) Rs 45 (b) Rs 55 (c) Rs 60 (d) Rs 70

Out of the total pens, 10% of pens are black. 10% of remaining pens are blue. 20% of remaining pens are red. The remaining 648 pens are green. How many total pens are there?

There are 39 pens in a row. Red pen is 9th from left end and green pen is 21st from left end. How many pens are there between red and green pen?