Question

Students are standing in 25 rows for a drill practice. Each row has 280 students. How many students were practicing for drill? Later all the students formed groups for another activity with 50 students in each group. How many groups were formed?

Answer 1

$\large { \underline{ \bf \red{Question:- }}}$

⟹ Sᴛᴜᴅᴇɴᴛs ᴀʀᴇ sᴛᴀɴᴅɪɴɢ ɪɴ 25 ʀᴏᴡs ғᴏʀ ᴀ ᴅʀɪʟʟ ᴘʀᴀᴄᴛɪᴄᴇ. Eᴀᴄʜ ʀᴏᴡ ʜᴀs 280 sᴛᴜᴅᴇɴᴛs. Hᴏᴡ ᴍᴀɴʏ sᴛᴜᴅᴇɴᴛs ᴡᴇʀᴇ ᴘʀᴀᴄᴛɪᴄɪɴɢ ғᴏʀ ᴅʀɪʟʟ? Lᴀᴛᴇʀ ᴀʟʟ ᴛʜᴇ sᴛᴜᴅᴇɴᴛs ғᴏʀᴍᴇᴅ ɢʀᴏᴜᴘs ғᴏʀ ᴀɴᴏᴛʜᴇʀ ᴀᴄᴛɪᴠɪᴛʏ ᴡɪᴛʜ 50 sᴛᴜᴅᴇɴᴛs ɪɴ ᴇᴀᴄʜ ɢʀᴏᴜᴘ. Hᴏᴡ ᴍᴀɴʏ ɢʀᴏᴜᴘs ᴡᴇʀᴇ ғᴏʀᴍᴇᴅ?

$\large { \underline{ \bf \purple{Given:- }}}$

⟹Sᴛᴜᴅᴇɴᴛs ᴀʀᴇ sᴛᴀɴᴅɪɴɢ ɪɴ 25 ʀᴏᴡs ғᴏʀ ᴀ ᴅʀɪʟʟ ᴘʀᴀᴄᴛɪᴄᴇ. Eᴀᴄʜ ʀᴏᴡ ʜᴀs 280 sᴛᴜᴅᴇɴᴛs.

$\large { \underline{ \bf \pink{To Find:- }}}$

⟹ Hᴏᴡ ᴍᴀɴʏ sᴛᴜᴅᴇɴᴛs ᴡᴇʀᴇ ᴘʀᴀᴄᴛɪᴄɪɴɢ ғᴏʀ ᴅʀɪʟʟ?

⟹Lᴀᴛᴇʀ ᴀʟʟ ᴛʜᴇ sᴛᴜᴅᴇɴᴛs ғᴏʀᴍᴇᴅ ɢʀᴏᴜᴘs ғᴏʀ ᴀɴᴏᴛʜᴇʀ ᴀᴄᴛɪᴠɪᴛʏ ᴡɪᴛʜ 50 sᴛᴜᴅᴇɴᴛs ɪɴ ᴇᴀᴄʜ ɢʀᴏᴜᴘ. Hᴏᴡ ᴍᴀɴʏ ɢʀᴏᴜᴘs ᴡᴇʀᴇ ғᴏʀᴍᴇᴅ?

$\large { \underline{ \bf \green{Solution:- }}}$

Sᴛᴜᴅᴇɴᴛ ᴀʀᴇ sᴛᴀɴᴅɪɴɢ ɪɴ 25 ʀᴏᴡ ғᴏʀ ᴅʀɪʟʟ ᴘʀᴀᴄᴛɪᴄᴇ.

Eᴀᴄʜ ʀᴏᴡ ʜᴀs sᴛᴜᴅᴇɴᴛs= 280

Nᴜᴍʙᴇʀ ᴏғ Sᴛᴜᴅᴇɴᴛs ᴡᴇʀᴇ ᴘʀᴀᴄᴛɪᴄɪɴɢ ғᴏʀ ᴅʀɪʟʟ :-

Formula:-

⟹Eᴀᴄʜ sᴛᴜᴅᴇɴᴛs ɪɴ ᴀ ʀᴏᴡ × 25 ɢʀᴏᴜᴘs.

$⟹25 \times 280 \\ ⟹7000$

Lᴀᴛᴇʀ ᴀʟʟ ᴛʜᴇ sᴛᴜᴅᴇɴᴛs ғᴏʀᴍᴇᴅ ɢʀᴏᴜᴘs ғᴏʀ ᴀɴᴏᴛʜᴇʀ ᴀᴄᴛɪᴠɪᴛʏ ᴡɪᴛʜ 50 sᴛᴜᴅᴇɴᴛs ɪɴ ᴇᴀᴄʜ ɢʀᴏᴜᴘ.

Nᴜᴍʙᴇʀ ᴏғ ɢʀᴏᴜᴘs ᴡᴇʀᴇ ғᴏʀᴍᴇᴅ :-

Formula:-

⟹Nᴜᴍʙᴇʀ ᴏғ ᴛᴏᴛᴀʟ sᴛᴜᴅᴇɴᴛ × 50 sᴛᴜᴅᴇɴᴛs

$⟹7000 \div 50 \\ ⟹140$

$\large { \underline{ \bf \blue{Therefore:- }}}$

⟹ 7000 sᴛᴜᴅᴇɴᴛs ᴡᴇʀᴇ ᴘʀᴀᴄᴛɪᴄɪɴɢ ᴅʀɪʟʟ.

⟹ 140 Gʀᴏᴜᴘs ᴡᴇʀᴇ ғᴏʀᴍᴇᴅ ғᴏʀ sᴇᴄᴏɴᴅ ᴀᴄᴛɪᴠɪᴛʏ.

Answer 2

➤ Answer :-

Total number of students practicing for drill :-

$\longrightarrow \sf \: 280 \times 25$

$\longrightarrow \sf \: 7000$

$\Huge\therefore$7000 students were practising for drill.

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Total groups formed if each group has 50 students :-

$\longrightarrow \sf \: \frac{7000}{50}$

$\longrightarrow \sf \cancel \frac{7000}{50} = \frac{140}{1} = 140$

$\Huge\therefore$140 groups were formed