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In the following question, select the odd word/letters from the given alternatives.

Find the missing number from the given figure?

Read the given statement and conclusions carefully and decide which conclusion follows.
Statement:
Sound cannot transmit in vacuum.
Conclusion:
I. We Cannot hear the sound of explosion in vacuum.
II. We cannot hear the sound of explosions in the atmosphere.

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cccbb_aa_cc_bbbaa_c 

If in a certain way, 3 + 4 = 25 and 7 + 24 = 625, then Find the value of 9 + 40 =?

A number in the given number series is incorrect. Find the wrong number.
120, 143, 168, 196, 224