Please Explain in detail, thankyou in advance::::
In a college there are 1500 students. The ratio between the number of boys and girls is 8:7 resp. In the college there are two disciplines namely Science and Commerce.
45% of boys study Science and remaining Commerce. The students of the college like three colors- red, green and yellow.
35% of Science students like red color, 35% green and 30% yellow. One-fourth of them like both green and red colors, 15% both red and yellow, 15% green and yellow, and 10% like all three colors 6/11th path of Commerce boys like red, 45% like green and 40% like yellow color, 1/5th of Commerce boys like both red and yellow, 2/11th of them green and red, 15% green and yellow and 1/10th of them like all three colors.
Of the girls, 40% of them study Science and remaining study Commerce. Of the girls studying commerce, 30% like red, 25% green and 20% yellow, 2/7th of them like red and green, 1/3rd of them red and yellow, 20% of them like green and yellow 5% of them like all three colors.
1. How many boys studying Sceince do like either red or green or yellow or all three colors?
2. How many girls studying Science do like either red or green or yellow or all three colors?
3. How many boys studying Commerce do like only green color?
4. How many boys studying Science do like at least two colors?
5. How many girls studynig Science do like at least two colors?
6. What is the ratio between the total number of boys and girls taking both disciplines together who like all three colors?
It takes 6 days for 3 women and 2 men working together to complete a work . 3 men would do the same work 5 days sooner than 9 women. How many times does the output of a man exceed that of a woman?
Abandoned group !!! 😷
A candidate takes a test and attempts all the 100 questions in it. While any correct answer fetches 1 mark, wrong answers are penalised as follows; one-tenth of the questions carry 1/10 negative mark each, one-fifth of the questions carry 1/5 negative marks each and the rest of the questions carry 1/2 negative mark each. Unattempted questions carry no marks. What is the difference between the maximum and the minimum marks that he can score? a) 100 b) 120 c) 140 d) none of these
SBI_PO_MAINS_DI : how to approch 18-21.....please explain
asked in sbi po mains :
Quantity I = 18x3 y3,Quantity II=12 x4y4 ,if x>0 & 𝑦<0
(a) Quantity I >Quntity II (b) Quantity I < Quantity II (c) Quantity I ≤ Quantity II (d)Quantity I=quantity II or No relation (e) Quantity I ≥ Quantity II
The number of five-digit telephone numbers having at least one of their digits repeated is a) 90000 b) 100000 c) 30240 d) 69760