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Find your weak chapters

One question from each chapter. At the end you'll see which chapters are likely costing you marks.

Question 1 of 10Ch 1 · Real Numbers

If HCF(a,b)=12\text{HCF}(a,b)=12HCF(a,b)=12 and a×b=1800a\times b=1800a× b=1800, then LCM(a,b)\text{LCM}(a,b)LCM(a,b) is: