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Given, Number of white balls = 20 Let x be the number of black balls. Total number of balls in the bag = 20 + x Also, the probability of drawing a black ball from the bag is 6.25 times that of drawing a white ball. ⇒ x/(20 + x) = 6.25[20/(20 + x)] ⇒ x = 125 Hence, the number of black balls in the bag = 125.
Select the figure that will come next in the following figure series.
Six friends are sitting in a circle. All of them are facing the centre. Kanak sits third to the right of Sona. Kapil is an immediate neighbour of Mani. ...
In a certain code language, 'COURAGE' is written as 'VPDQFHB' and 'MAGICAL' is written as 'HBNHMBD'. How will 'HOSTELS' be written in that language?
A is the son-in-law of B, whose son is D. D is the brother of C, whose only daughter is E. How is C related to A?
Select the option that represents the correct order of the given words as they would appear in an English dictionary.
1. Refinery
2. Refle...
Select the option that will fill in the blank and complete the given series.
7, 9, 13, 21, __________
Six persons A, B, C, D, E and F have one different cars namely C1, C2, C3, C4, C5 and C6 (not necessarily in the same order). Each also likes a differe...
Study the given pattern carefully and select the number that can replace the question mark (?) in it.
25 24 122
31 27 143
35 29 ?
Three of the following words are alike in some manner and hence form a group. Which word does NOT belong to that group? (The words must be considered as...
Which of the following terms will replace the question mark (?) in the given series?
NLJ, JHF, FDB, BZX,?
