Q. If a Venn diagram shows that all 'A' are 'B', and there are 20 elements in A, how many elements are in B if there are also 10 elements only in B?

यदि एक वेन आरेख दिखाता है कि सभी 'ए' 'बी' हैं, और ए में 20 तत्व हैं, तो बी में कितने तत्व हैं यदि बी में भी केवल 10 तत्व हैं?

A
20
B
25
C
30
D
35

Explanation

Explanation will be available soon. Please stay tuned.

व्याख्या जल्द ही उपलब्ध होगी। कृपया बने रहें।

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