Aptitude questions
1)The smallest number which when diminished by 3 is divisible by 21,28,36 and 45 is... (i) 869
(ii) 859
(iii) 4320
(iv) 427
2) Gold is 19 times as heavy as <a href="https://www.personality-and-aptitude-career-tests.com/quantitative-aptitude-test.html#" target="_blank" rel="nofollow noopener noreferrer">Question Answer Quantitative Aptitude Test</a><a href="https://www.personality-and-aptitude-career-tests.com/quantitative-aptitude-test.html#" target="_blank" rel="nofollow noopener noreferrer">Question Answer Quantitative Aptitude Test</a> [/COLOR]and copper is 9 times as heavy as water. In what ratio should these be mixed to get an alloy 15 times as heavy as water? (i) 1:1
(ii) 2:3
(iii) 1:2
(iv) 3:2