In the class of 40 students, 30 speak Hindi and 20 speak English. What is the lowest possible number of students who speak both the languages?
(a) 5 (b) 20 (c) 15 (d) 10 (e) 30
2006-10-10 01:53:48 · 8 answers · asked by yamuna s 1 in Science & Mathematics ➔ Mathematics
10
2006-10-10 01:56:55 · answer #1 · answered by rockinsaint 2 · 0⤊ 1⤋
40 students
30 speak Hindi
20 speak English
minimum bi-lingual
30+20-40=10 must be bi-lingual there are:
20 speak only Hindi
10 speak only English
10 speak both
check
20+10+10=40total
20+10=30 speak Hindi
10+10=20 speak English
2006-10-13 15:31:52 · answer #2 · answered by yupchagee 7 · 0⤊ 0⤋
d) 10
2006-10-10 08:55:38 · answer #3 · answered by Anonymous · 0⤊ 0⤋
(d) 10 .
(In a class of 40 students ,
30 students are hindi speaking.So, atleast 10 students can speak english.
20 students are english speaking.So, atleast 20 students can speak hindi.
So, from above, 10 is the lowest possible number of students who speak both the languages.Maximum possible students who can speak both the languages are 20.)
2006-10-10 09:15:40 · answer #4 · answered by Anonymous · 0⤊ 1⤋
(d) 10
2006-10-10 09:02:14 · answer #5 · answered by kirin575 2 · 0⤊ 1⤋
10 uh sets right
2006-10-10 08:56:41 · answer #6 · answered by roxassnake16 2 · 0⤊ 1⤋
(d) 10
20 Hindi only
10 both
10 English only
I solved this by trial and error :-)
2006-10-10 08:57:48 · answer #7 · answered by ♪ ♫ ☮ NYbron ☮ ♪ ♫ 6 · 0⤊ 1⤋
that would be 10 ..Obviously .. (i think)
2006-10-10 09:03:00 · answer #8 · answered by suz1225 2 · 0⤊ 1⤋