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Start learning 50% faster. Sign in nowThe idiom ‘hard/tough nut to crack’ means ‘a problem that is very difficult to solve or a person who is very difficult to understand’. It is correct. There is another idiom ‘a hard/tough row to hoe’ means ‘a difficult situation to deal with’. The creation of a single European market in financial services was a hard nut to crack , but it has been a resounding success.
What will come in place of (?) Question mark in the given number series.
1, 2, 5, 14, 41, 122, ?
38% of 18/225 of 31/19 of 15225 =?
What will come in place of the question mark (?) in the following series?
72, 108, 172, ?, 416, 612
64, 32, 48, 120, 420, ?
64, 256, 128, 512, 256, ?
188 178 158 ? 88 38
2807, 1400, 697, 346, 171, 84, 41, ?
324 972 486 1458 729 ?
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