Others Maths Puzzle Numerical Ability Probability

Ritu visited a mall where tokens are given while submitting the belongings at the entrance. Token are numbered from a, b, c, d ...... z. Guard gives the token at random. What is the probability that token given to Ritu is a consonant?
Op 1: 5/21
Op 2: 21/26
Op 3: 5/26
Op 4: 26/21

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Others Other Question

: FIND THE VALUE OF X here?
(2/7)^-8*(7/2)^-2=(2/7)^X
Op 1: 3
Op 2: -3
Op 3: -6
Op 4: 2
In a class of 60 students, how many students play only hockey? I) 30 students donot play cricket and 20 donot play hockey. II) The sum of number of students who play both cricket & hockey and the number of students who play neither cricket or hockey is 10.
a) Statement I is alone sufficient
b) Statement II alone is sufficient
c) Both are needed